scripts: Add placeholders for OPTIONS_SPEC

--text follows this line--
These commands currently lack OPTIONS_SPEC; allow people to
easily list with "git grep 'OPTIONS_SPEC=$'" what they can help
improving.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/git-bisect.sh b/git-bisect.sh
index b74f44df60..c18bd32bf4 100755
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -22,6 +22,7 @@ git bisect log
 git bisect run <cmd>...
         use <cmd>... to automatically bisect.'
 
+OPTIONS_SPEC=
 . git-sh-setup
 require_work_tree