Changes since 2.12.3:

• Fixed occasional lchown errors when upgrading ports.
  (#73514, jmr in 07ff611)

• Fixed occasional permissions errors when using a ports tree in a
  git repo. (pguyot in b4709d0)

• Fixed port deps error with unindexed ports. (jmr in 2dff719)

• Added --with-git option to configure.
  (#72451, herbygillot in 3ea4d20)