grep: enable recurse-submodules to work on <tree> objects

diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index 4f7eadb5963e7d698f9ee6e265b1657e543cdb44..fdaeb3a96bed361f53030cb6ea5c6bdde445163f 100644 (file)
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -81,6 +81,10 @@ test_decode_color () {
        '
 }
 
+lf_to_nul () {
+       perl -pe 'y/\012/\000/'
+}
+
 nul_to_q () {
        perl -pe 'y/\000/Q/'
 }