refs: make rev-parse --quiet actually quiet

diff --git a/t/lib-diff-alternative.sh b/t/lib-diff-alternative.sh
index 75ffd9174fbfb7fc6b14d4777f6613d9f052d64f..8b4dbf22d2d140bef7ca0e106a389cb0ca1d4681 100644 (file)
--- a/t/lib-diff-alternative.sh
+++ b/t/lib-diff-alternative.sh
@@ -1,4 +1,5 @@
-#!/bin/sh
+# Helpers shared by the test scripts for diff algorithms (patience,
+# histogram, etc).
 
 test_diff_frobnitz() {
        cat >file1 <<\EOF