trivial: use git-repo-config to detect if the test can be run on the repository

diff --git a/git-repack.sh b/git-repack.sh
index 430ddc5a706945035149464d0bea8f25acc21d3c..1fafb6ecf6ffbac817865470ec923af203da8e7e 100755 (executable)
--- a/git-repack.sh
+++ b/git-repack.sh
@@ -3,6 +3,7 @@
 # Copyright (c) 2005 Linus Torvalds
 #
 
+USAGE='[-a] [-d] [-l] [-n]'
 . git-sh-setup
        
 no_update_info= all_into_one= remove_redundant= local=
@@ -13,7 +14,7 @@ do
        -a)     all_into_one=t ;;
        -d)     remove_redundant=t ;;
        -l)     local=t ;;
-       *)      break ;;
+       *)      usage ;;
        esac
        shift
 done