Introduce usagef() that takes a printf-style format

diff --git a/t/t3101-ls-tree-dirname.sh b/t/t3101-ls-tree-dirname.sh
index 4dd7d12bac62eae23516686c0ece0edf037f0317..51cb4a30f571772399697bc073153b7e956853bf 100755 (executable)
--- a/t/t3101-ls-tree-dirname.sh
+++ b/t/t3101-ls-tree-dirname.sh
@@ -135,4 +135,10 @@ test_expect_success \
 EOF
      test_output'
 
+test_expect_success 'ls-tree filter is leading path match' '
+       git ls-tree $tree pa path3/a >current &&
+       >expected &&
+       test_output
+'
+
 test_done