bisect: it needs to be done in a working tree.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/git-bisect.sh b/git-bisect.sh
index e8d34189887cdbc2776ec2da039454c059705b65..24160ec51c7a486d162eaaaa64a56fe46671ed49 100755 (executable)
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -11,6 +11,7 @@ git bisect replay <logfile>   replay bisection log
 git bisect log                 show bisect log.'
 
 . git-sh-setup
+require_work_tree
 
 sq() {
        @@PERL@@ -e '