bisect: add first-parent option to documentation

Ensure that the [--first-parent] option is listed in the output of
"git bisect -h".

Signed-off-by: Aaron Lipman <alipman88@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-bisect.sh b/git-bisect.sh
index 8fbda2e2c7ad0532ee73a5a6a6b116859792aa98..eefc8eec88401e12a95885c5be0b1aca3c4f329a 100755 (executable)
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -4,7 +4,7 @@ USAGE='[help|start|bad|good|new|old|terms|skip|next|reset|visualize|view|replay|
 LONG_USAGE='git bisect help
        print this long help message.
 git bisect start [--term-{old,good}=<term> --term-{new,bad}=<term>]
-                [--no-checkout] [<bad> [<good>...]] [--] [<pathspec>...]
+                [--no-checkout] [--first-parent] [<bad> [<good>...]] [--] [<pathspec>...]
        reset bisect state and start bisection.
 git bisect (bad|new) [<rev>]
        mark <rev> a known-bad revision/