From: Junio C Hamano <hidden> Date: 2016-06-15 22:42:06
Linus Torvalds [off-list ref] writes:
Which means that the _same_ "alternates" file can be shared with many
different project.git/ directories, and thus it's not well-defined to make
it relative to GIT_DIR.
Good point.
You can make it relative to "GIT_OBJECTS_DIR/.." of course, which in most
cases is the same thing as "GIT_DIR".