reflog [show]: display sensible -h output

Change the "git reflog show -h" output to show the usage summary
relevant to it, rather than displaying the same output that "git log
-h" would show.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/t/t1410-reflog.sh b/t/t1410-reflog.sh
index 0dc36d842b..3f469353ec 100755
--- a/t/t1410-reflog.sh
+++ b/t/t1410-reflog.sh
@@ -111,6 +111,11 @@ test_expect_success 'correct usage on sub-command -h' '
 	grep "git reflog expire" err
 '
 
+test_expect_success 'correct usage on "git reflog show -h"' '
+	test_expect_code 129 git reflog show -h >err &&
+	grep -F "git reflog [show]" err
+'
+
 test_expect_success 'pass through -- to sub-command' '
 	test_when_finished "rm -rf repo" &&
 	git init repo &&