pre-commit.sh: use fully-qualified ref with ref_exists
commit2d49c7fd8874a99295e5d1354654002e267a6f97
authorKyle J. McKay <mackyle@gmail.com>
Sat, 31 Oct 2015 20:48:28 +0000 (31 13:48 -0700)
committerKyle J. McKay <mackyle@gmail.com>
Sat, 31 Oct 2015 20:48:28 +0000 (31 13:48 -0700)
tree8683cf62ef204f8d7b163dff24aee47e0032fee7
parent67a2fe634299395461a20ca56ac96844a9a40355
pre-commit.sh: use fully-qualified ref with ref_exists

In 6466221a (refs: always use fully-qualified refs, topgit-0.18)
internal function use was changed to require absolute refs when
calling ref_exists.  However, one call in the pre-commit hook
slipped through.

Correct it now to avoid the fatal error.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
hooks/pre-commit.sh