filter-branch: fix dirty way to provide the helpers to commit filters

diff --git a/contrib/examples/git-gc.sh b/contrib/examples/git-gc.sh
index 2ae235b081ea9829a51758bba5a0d0d64111d32c..1597e9f33f5e001995085639a448f1214010b561 100755 (executable)
--- a/contrib/examples/git-gc.sh
+++ b/contrib/examples/git-gc.sh
@@ -9,7 +9,7 @@ SUBDIRECTORY_OK=Yes
 . git-sh-setup
 
 no_prune=:
-while case $# in 0) break ;; esac
+while test $# != 0
 do
        case "$1" in
        --prune)