blame.h: drop extern on func declaration

diff --git a/git-bisect.sh b/git-bisect.sh
index a82256e345dcdfdade6f6196531d2c745cb52a29..54cbfecc5ab0531513ff9e069be55d74339ad427 100755 (executable)
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -450,6 +450,8 @@ bisect_replay () {
 bisect_run () {
        bisect_next_check fail
 
+       test -n "$*" || die "$(gettext "bisect run failed: no command provided.")"
+
        while true
        do
                command="$@"