Junio C Hamano [off-list ref] writes:
When users use "git frotz", the git command internally knows
where the right version of subcommands are stored. When reason
you would want to override that, you would exactly know one
directory with which you want to override it. You do not want
GIT_EXEC_PATH="/usr/lib/git-1.02:/usr/lib/git" in such a case,
either.
OOPS. That did not parse so well. "... When you would want to
override that for whatever reason, you would..."