git-svn: fix handling of even funkier branch names

diff --git a/t/t4020-diff-external.sh b/t/t4020-diff-external.sh
index 637b4e19d52e81cf1472a4ed9dcfb0c9ff00da2b..dfe3fbc74b96fff50160c032f0a65ba54f9ad1b2 100755 (executable)
--- a/t/t4020-diff-external.sh
+++ b/t/t4020-diff-external.sh
@@ -104,7 +104,7 @@ echo NULZbetweenZwords | perl -pe 'y/Z/\000/' > file
 test_expect_success 'force diff with "diff"' '
        echo >.gitattributes "file diff" &&
        git diff >actual &&
-       test_cmp ../t4020/diff.NUL actual
+       test_cmp "$TEST_DIRECTORY"/t4020/diff.NUL actual
 '
 
 test_done