shared: Drop 'name=' prefix from SYSTEMD_CGROUP_CONTROLLER define. - #6

=================================================================
==64281==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 32 byte(s) in 1 object(s) allocated from:
    #0 0x7f623c961c4a in malloc (/usr/lib64/libasan.so.2+0x96c4a)
    #1 0x5651f79ad34e in malloc_multiply (/home/crrodriguez/scm/systemd/systemd-modules-load+0x2134e)
    #2 0x5651f79b02d6 in strjoin (/home/crrodriguez/scm/systemd/systemd-modules-load+0x242d6)
    #3 0x5651f79be1f5 in files_add (/home/crrodriguez/scm/systemd/systemd-modules-load+0x321f5)
    #4 0x5651f79be6a3 in conf_files_list_strv_internal (/home/crrodriguez/scm/systemd/systemd-modules-load+0x326a3)
    #5 0x5651f79bea24 in conf_files_list_nulstr (/home/crrodriguez/scm/systemd/systemd-modules-load+0x32a24)
    #6 0x5651f79ad01a in main (/home/crrodriguez/scm/systemd/systemd-modules-load+0x2101a)
    #7 0x7f623c11586f in __libc_start_main (/lib64/libc.so.6+0x2086f)

SUMMARY: AddressSanitizer: 32 byte(s) leaked in 1 allocation(s).

This happens due to the wrong cleanup attribute is used (free vs strv_free)

If systemd is built with GCC address sanitizer or leak sanitizer
the following memory leak ocurs:

May 12 02:02:46 linux.site systemd[326]: =================================================================
May 12 02:02:46 linux.site systemd[326]: ==326==ERROR: LeakSanitizer: detected memory leaks
May 12 02:02:46 linux.site systemd[326]: Direct leak of 101 byte(s) in 3 object(s) allocated from:
May 12 02:02:46 linux.site systemd[326]: #0 0x7fd1f504993f in strdup (/usr/lib64/libasan.so.2+0x6293f)
May 12 02:02:46 linux.site systemd[326]: #1 0x55d6ffac5336 in strv_new_ap src/shared/strv.c:163
May 12 02:02:46 linux.site systemd[326]: #2 0x55d6ffac56a9 in strv_new src/shared/strv.c:185
May 12 02:02:46 linux.site systemd[326]: #3 0x55d6ffa80272 in generator_paths src/shared/path-lookup.c:223
May 12 02:02:46 linux.site systemd[326]: #4 0x55d6ff9bdb0f in manager_run_generators src/core/manager.c:2828
May 12 02:02:46 linux.site systemd[326]: #5 0x55d6ff9b1a10 in manager_startup src/core/manager.c:1121
May 12 02:02:46 linux.site systemd[326]: #6 0x55d6ff9a78e3 in main src/core/main.c:1667
May 12 02:02:46 linux.site systemd[326]: #7 0x7fd1f394e8c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)
May 12 02:02:46 linux.site systemd[326]: Direct leak of 29 byte(s) in 1 object(s) allocated from:
May 12 02:02:46 linux.site systemd[326]: #0 0x7fd1f504993f in strdup (/usr/lib64/libasan.so.2+0x6293f)
May 12 02:02:46 linux.site systemd[326]: #1 0x55d6ffac5288 in strv_new_ap src/shared/strv.c:152
May 12 02:02:46 linux.site systemd[326]: #2 0x55d6ffac56a9 in strv_new src/shared/strv.c:185
May 12 02:02:46 linux.site systemd[326]: #3 0x55d6ffa80272 in generator_paths src/shared/path-lookup.c:223
May 12 02:02:46 linux.site systemd[326]: #4 0x55d6ff9bdb0f in manager_run_generators src/core/manager.c:2828
May 12 02:02:46 linux.site systemd[326]: #5 0x55d6ff9b1a10 in manager_startup src/core/manager.c:1121
May 12 02:02:46 linux.site systemd[326]: #6 0x55d6ff9a78e3 in main src/core/main.c:1667
May 12 02:02:46 linux.site systemd[326]: #7 0x7fd1f394e8c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)
May 12 02:02:46 linux.site systemd[326]: SUMMARY: AddressSanitizer: 130 byte(s) leaked in 4 allocation(s).

There is a leak due to the the use of cleanup_free instead _cleanup_strv_free_

$ /usr/lib/systemd/systemd-timedated (wait until auto-exit)

=================================================================
==396==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 928 byte(s) in 1 object(s) allocated from:
    #0 0x7f782f788db1 in __interceptor_calloc (/usr/lib64/libasan.so.2+0x96db1)
    #1 0x562a83ae60cf in bus_message_from_header src/libsystemd/sd-bus/bus-message.c:480
    #2 0x562a83ae6f5a in bus_message_from_malloc src/libsystemd/sd-bus/bus-message.c:576
    #3 0x562a83ad3cad in bus_socket_make_message src/libsystemd/sd-bus/bus-socket.c:915
    #4 0x562a83ad4cfc in bus_socket_read_message src/libsystemd/sd-bus/bus-socket.c:1051
    #5 0x562a83ab733f in bus_read_message src/libsystemd/sd-bus/sd-bus.c:1647
    #6 0x562a83ab98ea in sd_bus_call src/libsystemd/sd-bus/sd-bus.c:2038
    #7 0x562a83b1f46d in sd_bus_call_method src/libsystemd/sd-bus/bus-convenience.c:94
    #8 0x562a83aab3e1 in context_read_ntp src/timedate/timedated.c:192
    #9 0x562a83aae1af in main src/timedate/timedated.c:730
    #10 0x7f782eb238c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)

Indirect leak of 77 byte(s) in 1 object(s) allocated from:
    #0 0x7f782f788f6a in realloc (/usr/lib64/libasan.so.2+0x96f6a)
    #1 0x562a83ad418a in bus_socket_read_message src/libsystemd/sd-bus/bus-socket.c:963
    #2 0x562a83ab733f in bus_read_message src/libsystemd/sd-bus/sd-bus.c:1647
    #3 0x562a83ab98ea in sd_bus_call src/libsystemd/sd-bus/sd-bus.c:2038
    #4 0x562a83b1f46d in sd_bus_call_method src/libsystemd/sd-bus/bus-convenience.c:94
    #5 0x562a83aab3e1 in context_read_ntp src/timedate/timedated.c:192
    #6 0x562a83aae1af in main src/timedate/timedated.c:730
    #7 0x7f782eb238c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)

Indirect leak of 2 byte(s) in 1 object(s) allocated from:
    #0 0x7f782f75493f in strdup (/usr/lib64/libasan.so.2+0x6293f)
    #1 0x562a83b0229b in bus_message_parse_fields src/libsystemd/sd-bus/bus-message.c:5382
    #2 0x562a83ae7290 in bus_message_from_malloc src/libsystemd/sd-bus/bus-message.c:601
    #3 0x562a83ad3cad in bus_socket_make_message src/libsystemd/sd-bus/bus-socket.c:915
    #4 0x562a83ad4cfc in bus_socket_read_message src/libsystemd/sd-bus/bus-socket.c:1051
    #5 0x562a83ab733f in bus_read_message src/libsystemd/sd-bus/sd-bus.c:1647
    #6 0x562a83ab98ea in sd_bus_call src/libsystemd/sd-bus/sd-bus.c:2038
    #7 0x562a83b1f46d in sd_bus_call_method src/libsystemd/sd-bus/bus-convenience.c:94
    #8 0x562a83aab3e1 in context_read_ntp src/timedate/timedated.c:192
    #9 0x562a83aae1af in main src/timedate/timedated.c:730
    #10 0x7f782eb238c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)

SUMMARY: AddressSanitizer: 1007 byte(s) leaked in 3 allocation(s).

This is due to missing  _cleanup_bus_message_unref_ in context_read_ntp()

shared: Drop 'name=' prefix from SYSTEMD_CGROUP_CONTROLLER define.

$ /usr/lib/systemd/systemd-timedated (wait until auto-exit)

=================================================================
==396==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 928 byte(s) in 1 object(s) allocated from:
    #0 0x7f782f788db1 in __interceptor_calloc (/usr/lib64/libasan.so.2+0x96db1)
    systemd#1 0x562a83ae60cf in bus_message_from_header src/libsystemd/sd-bus/bus-message.c:480
    systemd#2 0x562a83ae6f5a in bus_message_from_malloc src/libsystemd/sd-bus/bus-message.c:576
    systemd#3 0x562a83ad3cad in bus_socket_make_message src/libsystemd/sd-bus/bus-socket.c:915
    systemd#4 0x562a83ad4cfc in bus_socket_read_message src/libsystemd/sd-bus/bus-socket.c:1051
    systemd#5 0x562a83ab733f in bus_read_message src/libsystemd/sd-bus/sd-bus.c:1647
    systemd#6 0x562a83ab98ea in sd_bus_call src/libsystemd/sd-bus/sd-bus.c:2038
    systemd#7 0x562a83b1f46d in sd_bus_call_method src/libsystemd/sd-bus/bus-convenience.c:94
    systemd#8 0x562a83aab3e1 in context_read_ntp src/timedate/timedated.c:192
    systemd#9 0x562a83aae1af in main src/timedate/timedated.c:730
    systemd#10 0x7f782eb238c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)

Indirect leak of 77 byte(s) in 1 object(s) allocated from:
    #0 0x7f782f788f6a in realloc (/usr/lib64/libasan.so.2+0x96f6a)
    systemd#1 0x562a83ad418a in bus_socket_read_message src/libsystemd/sd-bus/bus-socket.c:963
    systemd#2 0x562a83ab733f in bus_read_message src/libsystemd/sd-bus/sd-bus.c:1647
    systemd#3 0x562a83ab98ea in sd_bus_call src/libsystemd/sd-bus/sd-bus.c:2038
    systemd#4 0x562a83b1f46d in sd_bus_call_method src/libsystemd/sd-bus/bus-convenience.c:94
    systemd#5 0x562a83aab3e1 in context_read_ntp src/timedate/timedated.c:192
    systemd#6 0x562a83aae1af in main src/timedate/timedated.c:730
    systemd#7 0x7f782eb238c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)

Indirect leak of 2 byte(s) in 1 object(s) allocated from:
    #0 0x7f782f75493f in strdup (/usr/lib64/libasan.so.2+0x6293f)
    systemd#1 0x562a83b0229b in bus_message_parse_fields src/libsystemd/sd-bus/bus-message.c:5382
    systemd#2 0x562a83ae7290 in bus_message_from_malloc src/libsystemd/sd-bus/bus-message.c:601
    systemd#3 0x562a83ad3cad in bus_socket_make_message src/libsystemd/sd-bus/bus-socket.c:915
    systemd#4 0x562a83ad4cfc in bus_socket_read_message src/libsystemd/sd-bus/bus-socket.c:1051
    systemd#5 0x562a83ab733f in bus_read_message src/libsystemd/sd-bus/sd-bus.c:1647
    systemd#6 0x562a83ab98ea in sd_bus_call src/libsystemd/sd-bus/sd-bus.c:2038
    systemd#7 0x562a83b1f46d in sd_bus_call_method src/libsystemd/sd-bus/bus-convenience.c:94
    systemd#8 0x562a83aab3e1 in context_read_ntp src/timedate/timedated.c:192
    systemd#9 0x562a83aae1af in main src/timedate/timedated.c:730
    systemd#10 0x7f782eb238c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)

SUMMARY: AddressSanitizer: 1007 byte(s) leaked in 3 allocation(s).

This is due to missing  _cleanup_bus_message_unref_ in context_read_ntp()

(cherry picked from commit 6b71bab)

$ /usr/lib/systemd/systemd-timedated (wait until auto-exit)

=================================================================
==396==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 928 byte(s) in 1 object(s) allocated from:
    #0 0x7f782f788db1 in __interceptor_calloc (/usr/lib64/libasan.so.2+0x96db1)
    systemd#1 0x562a83ae60cf in bus_message_from_header src/libsystemd/sd-bus/bus-message.c:480
    systemd#2 0x562a83ae6f5a in bus_message_from_malloc src/libsystemd/sd-bus/bus-message.c:576
    systemd#3 0x562a83ad3cad in bus_socket_make_message src/libsystemd/sd-bus/bus-socket.c:915
    systemd#4 0x562a83ad4cfc in bus_socket_read_message src/libsystemd/sd-bus/bus-socket.c:1051
    systemd#5 0x562a83ab733f in bus_read_message src/libsystemd/sd-bus/sd-bus.c:1647
    systemd#6 0x562a83ab98ea in sd_bus_call src/libsystemd/sd-bus/sd-bus.c:2038
    systemd#7 0x562a83b1f46d in sd_bus_call_method src/libsystemd/sd-bus/bus-convenience.c:94
    systemd#8 0x562a83aab3e1 in context_read_ntp src/timedate/timedated.c:192
    systemd#9 0x562a83aae1af in main src/timedate/timedated.c:730
    systemd#10 0x7f782eb238c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)

Indirect leak of 77 byte(s) in 1 object(s) allocated from:
    #0 0x7f782f788f6a in realloc (/usr/lib64/libasan.so.2+0x96f6a)
    systemd#1 0x562a83ad418a in bus_socket_read_message src/libsystemd/sd-bus/bus-socket.c:963
    systemd#2 0x562a83ab733f in bus_read_message src/libsystemd/sd-bus/sd-bus.c:1647
    systemd#3 0x562a83ab98ea in sd_bus_call src/libsystemd/sd-bus/sd-bus.c:2038
    systemd#4 0x562a83b1f46d in sd_bus_call_method src/libsystemd/sd-bus/bus-convenience.c:94
    systemd#5 0x562a83aab3e1 in context_read_ntp src/timedate/timedated.c:192
    systemd#6 0x562a83aae1af in main src/timedate/timedated.c:730
    systemd#7 0x7f782eb238c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)

Indirect leak of 2 byte(s) in 1 object(s) allocated from:
    #0 0x7f782f75493f in strdup (/usr/lib64/libasan.so.2+0x6293f)
    systemd#1 0x562a83b0229b in bus_message_parse_fields src/libsystemd/sd-bus/bus-message.c:5382
    systemd#2 0x562a83ae7290 in bus_message_from_malloc src/libsystemd/sd-bus/bus-message.c:601
    systemd#3 0x562a83ad3cad in bus_socket_make_message src/libsystemd/sd-bus/bus-socket.c:915
    systemd#4 0x562a83ad4cfc in bus_socket_read_message src/libsystemd/sd-bus/bus-socket.c:1051
    systemd#5 0x562a83ab733f in bus_read_message src/libsystemd/sd-bus/sd-bus.c:1647
    systemd#6 0x562a83ab98ea in sd_bus_call src/libsystemd/sd-bus/sd-bus.c:2038
    systemd#7 0x562a83b1f46d in sd_bus_call_method src/libsystemd/sd-bus/bus-convenience.c:94
    systemd#8 0x562a83aab3e1 in context_read_ntp src/timedate/timedated.c:192
    systemd#9 0x562a83aae1af in main src/timedate/timedated.c:730
    systemd#10 0x7f782eb238c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)

SUMMARY: AddressSanitizer: 1007 byte(s) leaked in 3 allocation(s).

This is due to missing  _cleanup_bus_message_unref_ in context_read_ntp()

(cherry picked from commit 6b71bab)

Cherry-picked from: 6b71bab
Resolves: #1222517

This makes systemctl robust regarding journal truncation.
This is a follow-up for 2cf4172

Fixes:
Core was generated by `./systemctl status systemd-journald'.
Program terminated with signal SIGBUS, Bus error.
PID 8569 - core
TID 8569:
 #0  0x00007f246cc89ed6 __memcmp_sse4_1
 #1  0x0000557ebbc6f42c journal_file_init_header
 #2  0x0000557ebbc77262 journal_file_open
 #3  0x0000557ebbc42999 file_type_wanted
 #4  0x0000557ebbc42e08 add_any_file
 #5  0x0000557ebbc43832 add_directory
 #6  0x0000557ebbc4401c add_root_directory
 #7  0x0000557ebbc442e9 add_root_directory
 #8  0x0000557ebbc446fc add_search_paths
 #9  0x0000557ebbbacb5e show_journal_by_unit
 #10 0x0000557ebbb8376d print_status_info
 #11 0x0000557ebbb86a0b show_one
 #12 0x0000557ebbb87954 show
 #13 0x0000557ebbc20b1f dispatch_verb
 #14 0x0000557ebbb90615 systemctl_main
 #15 0x0000557ebbb9159f main
 #16 0x00007f246cb3e731 __libc_start_main
 #17 0x0000557ebbb75ae9 _start

Fixes:
Oct 20 09:10:49 systemd-sysusers[144]: Direct leak of 20 byte(s) in 1 object(s) allocated from:
Oct 20 09:10:49 systemd-sysusers[144]:     #0 0x7f3565a13e60 in malloc (/lib64/libasan.so.3+0xc6e60)
Oct 20 09:10:49 systemd-sysusers[144]:     #1 0x7f3565526bd0 in malloc_multiply src/basic/alloc-util.h:70
Oct 20 09:10:49 systemd-sysusers[144]:     #2 0x7f356552cb55 in tempfn_xxxxxx src/basic/fileio.c:1116
Oct 20 09:10:49 systemd-sysusers[144]:     #3 0x7f356552c4f0 in fopen_temporary src/basic/fileio.c:1042
Oct 20 09:10:49 systemd-sysusers[144]:     #4 0x7f356555e00e in fopen_temporary_label src/basic/fileio-label.c:63
Oct 20 09:10:49 systemd-sysusers[144]:     #5 0x56197c4a1766 in make_backup src/sysusers/sysusers.c:209
Oct 20 09:10:49 systemd-sysusers[144]:     #6 0x56197c4a6335 in write_files src/sysusers/sysusers.c:710
Oct 20 09:10:49 systemd-sysusers[144]:     #7 0x56197c4ae571 in main src/sysusers/sysusers.c:1817
Oct 20 09:10:49 systemd-sysusers[144]:     #8 0x7f3564dee730 in __libc_start_main (/lib64/libc.so.6+0x20730)

"%d (%m) %s\n" crashes asan: google/sanitizers#759
So, let's place %m after %s

Fixes:
```
$ ./libtool --mode=execute ./test-selinux
...
============ test_misc ==========
ASAN:DEADLYSIGNAL
=================================================================
==2981==ERROR: AddressSanitizer: SEGV on unknown address 0x000041b58ab3 (pc 0x7fd9c55a0eb2 bp 0x7fffdc2f9640 sp 0x7fffdc2f8d68 T0)
    #0 0x7fd9c55a0eb1  (/lib64/libasan.so.3+0xdeeb1)
    #1 0x7fd9c5550bbf  (/lib64/libasan.so.3+0x8ebbf)
    #2 0x7fd9c5552cdd in __interceptor_vsnprintf (/lib64/libasan.so.3+0x90cdd)
    #3 0x7fd9c5063715 in log_internalv src/basic/log.c:680
    #4 0x7fd9c506390a in log_internal src/basic/log.c:697
    #5 0x561d398181a2 in test_misc src/test/test-selinux.c:81
    #6 0x561d398185e8 in main src/test/test-selinux.c:117
    #7 0x7fd9c493a400 in __libc_start_main (/lib64/libc.so.6+0x20400)
    #8 0x561d39817859 in _start (/home/vagrant/systemd-asan/.libs/lt-test-selinux+0x1859)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib64/libasan.so.3+0xdeeb1)
==2981==ABORTING
```

The simplest way to reproduce:
```diff
diff --git a/src/libsystemd-network/test-dhcp6-client.c b/src/libsystemd-network/test-dhcp6-client.c
index bd289fa..7b0a5ef 100644
--- a/src/libsystemd-network/test-dhcp6-client.c
+++ b/src/libsystemd-network/test-dhcp6-client.c
@@ -168,7 +168,7 @@ static uint8_t msg_advertise[198] = {
         0x00, 0x17, 0x00, 0x10, 0x20, 0x01, 0x0d, 0xb8,
         0xde, 0xad, 0xbe, 0xef, 0x00, 0x00, 0x00, 0x00,
         0x00, 0x00, 0x00, 0x01, 0x00, 0x18, 0x00, 0x0b,
-        0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74,
+        0x01, 0x6c, 0x01, 0x62, 0x00, 0x0a, 0x6e, 0x74,
         0x72, 0x61, 0x00, 0x00, 0x1f, 0x00, 0x10, 0x20,
         0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, 0x00,
         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
@@ -338,9 +338,7 @@ static int test_advertise_option(sd_event *e) {
         assert_se(!memcmp(addrs, &msg_advertise[124], r * 16));

         r = sd_dhcp6_lease_get_domains(lease, &domains);
-        assert_se(r == 1);
-        assert_se(!strcmp("lab.intra", domains[0]));
-        assert_se(domains[1] == NULL);
+        assert_se(r == -ENOENT);

         r = sd_dhcp6_lease_get_ntp_addrs(lease, &addrs);
         assert_se(r == 1);
```

Fixes:
```
=================================================================
==15043==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 4 byte(s) in 1 object(s) allocated from:
    #0 0x7f13c8564160 in strdup (/lib64/libasan.so.3+0x5a160)
    #1 0x7f13c7caaf69 in strv_extend src/basic/strv.c:552
    #2 0x55f775787230 in dhcp6_option_parse_domainname src/libsystemd-network/dhcp6-option.c:399
    #3 0x55f775788b96 in dhcp6_lease_set_domains src/libsystemd-network/sd-dhcp6-lease.c:225
    #4 0x55f775774b95 in test_advertise_option src/libsystemd-network/test-dhcp6-client.c:287
    #5 0x55f77577883e in main src/libsystemd-network/test-dhcp6-client.c:759
    #6 0x7f13c7589400 in __libc_start_main (/lib64/libc.so.6+0x20400)

Direct leak of 4 byte(s) in 1 object(s) allocated from:
    #0 0x7f13c8564160 in strdup (/lib64/libasan.so.3+0x5a160)
    #1 0x7f13c7caaf69 in strv_extend src/basic/strv.c:552
    #2 0x55f775787230 in dhcp6_option_parse_domainname src/libsystemd-network/dhcp6-option.c:399
    #3 0x55f775788b96 in dhcp6_lease_set_domains src/libsystemd-network/sd-dhcp6-lease.c:225
    #4 0x55f775781348 in client_parse_message src/libsystemd-network/sd-dhcp6-client.c:807
    #5 0x55f775781ba2 in client_receive_advertise src/libsystemd-network/sd-dhcp6-client.c:895
    #6 0x55f775782453 in client_receive_message src/libsystemd-network/sd-dhcp6-client.c:994
    #7 0x7f13c7e447f4 in source_dispatch src/libsystemd/sd-event/sd-event.c:2268
    #8 0x7f13c7e471b0 in sd_event_dispatch src/libsystemd/sd-event/sd-event.c:2627
    #9 0x7f13c7e47ab3 in sd_event_run src/libsystemd/sd-event/sd-event.c:2686
    #10 0x7f13c7e47c21 in sd_event_loop src/libsystemd/sd-event/sd-event.c:2706
    #11 0x55f77577863c in test_client_solicit src/libsystemd-network/test-dhcp6-client.c:737
    #12 0x55f77577884b in main src/libsystemd-network/test-dhcp6-client.c:760
    #13 0x7f13c7589400 in __libc_start_main (/lib64/libc.so.6+0x20400)

SUMMARY: AddressSanitizer: 8 byte(s) leaked in 2 allocation(s).
```

The simplest way to reproduce:
```diff
diff --git a/src/libsystemd-network/test-dhcp6-client.c b/src/libsystemd-network/test-dhcp6-client.c
index bd289fa..4e14d8f 100644
--- a/src/libsystemd-network/test-dhcp6-client.c
+++ b/src/libsystemd-network/test-dhcp6-client.c
@@ -286,6 +286,8 @@ static int test_advertise_option(sd_event *e) {
                         assert_se(optlen == 11);
                         assert_se(dhcp6_lease_set_domains(lease, optval,
                                                           optlen) >= 0);
+                        assert_se(dhcp6_lease_set_domains(lease, optval,
+                                                          optlen) >= 0);
                         break;

                 case SD_DHCP6_OPTION_SNTP_SERVERS:
```

Fixes:
```
==27369==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 10 byte(s) in 1 object(s) allocated from:
    #0 0x7f90e7d21160 in strdup (/lib64/libasan.so.3+0x5a160)
    #1 0x7f90e7467f69 in strv_extend src/basic/strv.c:552
    #2 0x5612fcc19379 in dhcp6_option_parse_domainname src/libsystemd-network/dhcp6-option.c:399
    #3 0x5612fcc1acdf in dhcp6_lease_set_domains src/libsystemd-network/sd-dhcp6-lease.c:225
    #4 0x5612fcc06b95 in test_advertise_option src/libsystemd-network/test-dhcp6-client.c:287
    #5 0x5612fcc0a987 in main src/libsystemd-network/test-dhcp6-client.c:761
    #6 0x7f90e6d46400 in __libc_start_main (/lib64/libc.so.6+0x20400)

SUMMARY: AddressSanitizer: 10 byte(s) leaked in 1 allocation(s).
```

We would only log a terse message when pid1 or systemd-journald crashed.
It seems better to reuse the normal code paths as much as possible,
with the following differences:
- if pid1 crashes, we cannot launch the helper, so we don't analyze the
 coredump, just write it to file directly from the helper invoked by the
 kernel;
- if journald crashes, we can produce the backtrace, but we don't log full
  structured messages.

With comparison to previous code, advantages are:
- we go through most of the steps, so for example vacuuming is performed,
- we gather and log more data. In particular for journald and pid1 crashes we
  generate a backtrace, and for pid1 crashes we record the metadata (fdinfo,
  maps, etc.),
- coredumpctl shows pid1 crashes.

A disavantage (inefficiency) is that we gather metadata for journald crashes
which is then ignored because _TRANSPORT=kernel does not support structued
messages.

Messages for the systemd-journald "crash" have _TRANSPORT=kernel, and
_TRANSPORT=journal for the pid1 "crash".

Feb 26 16:27:55 systemd[1]: systemd-journald.service: Main process exited, code=dumped, status=11/SEGV
Feb 26 16:27:55 systemd[1]: systemd-journald.service: Unit entered failed state.
Feb 26 16:37:54 systemd-coredump[18801]: Process 18729 (systemd-journal) of user 0 dumped core.
Feb 26 16:37:54 systemd-coredump[18801]: Coredump diverted to /var/lib/systemd/coredump/core.systemd-journal.0.36c14bf3c6ce4c38914f441038990979.18729.1488145074000000.lz4
Feb 26 16:37:54 systemd-coredump[18801]: Stack trace of thread 18729:
Feb 26 16:37:54 systemd-coredump[18801]: #0  0x00007f46d6a06b8d fsync (libpthread.so.0)
Feb 26 16:37:54 systemd-coredump[18801]: #1  0x00007f46d71bfc47 journal_file_set_online (libsystemd-shared-233.so)
Feb 26 16:37:54 systemd-coredump[18801]: #2  0x00007f46d71c1c31 journal_file_append_object (libsystemd-shared-233.so)
Feb 26 16:37:54 systemd-coredump[18801]: #3  0x00007f46d71c3405 journal_file_append_data (libsystemd-shared-233.so)
Feb 26 16:37:54 systemd-coredump[18801]: #4  0x00007f46d71c4b7c journal_file_append_entry (libsystemd-shared-233.so)
Feb 26 16:37:54 systemd-coredump[18801]: #5  0x00005577688cf056 write_to_journal (systemd-journald)
Feb 26 16:37:54 systemd-coredump[18801]: #6  0x00005577688d2e98 dispatch_message_real (systemd-journald)
Feb 26 16:37:54 kernel: systemd-coredum: 9 output lines suppressed due to ratelimiting
Feb 26 16:37:54 systemd-journald[18810]: Journal started

Feb 26 16:50:59 systemd-coredump[19229]: Due to PID 1 having crashed coredump collection will now be turned off.
Feb 26 16:51:00 systemd[1]: Caught <SEGV>, dumped core as pid 19228.
Feb 26 16:51:00 systemd[1]: Freezing execution.
Feb 26 16:51:00 systemd-coredump[19229]: Process 19228 (systemd) of user 0 dumped core.

                                         Stack trace of thread 19228:
                                         #0  0x00007fab82075c47 kill (libc.so.6)
                                         #1  0x000055fdf7c38b6b crash (systemd)
                                         #2  0x00007fab824175c0 __restore_rt (libpthread.so.0)
                                         #3  0x00007fab82148573 epoll_wait (libc.so.6)
                                         #4  0x00007fab8366f84a sd_event_wait (libsystemd-shared-233.so)
                                         #5  0x00007fab836701de sd_event_run (libsystemd-shared-233.so)
                                         #6  0x000055fdf7c4a380 manager_loop (systemd)
                                         #7  0x000055fdf7c402c2 main (systemd)
                                         #8  0x00007fab82060401 __libc_start_main (libc.so.6)
                                         #9  0x000055fdf7c3818a _start (systemd)

Poor machine ;)