gc: make --prune useful again by accepting an optional parameter

diff --git a/t/t5512-ls-remote.sh b/t/t5512-ls-remote.sh
index c0dc94909b694439e389ceeeecec82ed36864ec0..1dd8eed5bb3cb0f320a8f0780452e52fa7d8da16 100755 (executable)
--- a/t/t5512-ls-remote.sh
+++ b/t/t5512-ls-remote.sh
@@ -17,7 +17,7 @@ test_expect_success setup '
                git show-ref -d | sed -e "s/ /  /"
        ) >expected.all &&
 
-       git remote add self $(pwd)/.git
+       git remote add self "$(pwd)/.git"
 
 '