Merge branch 'sg/test-squelch-noise-in-commit-bulk'

Code cleanup.

* sg/test-squelch-noise-in-commit-bulk:
  test-lib-functions: suppress a 'git rev-parse' error in 'test_commit_bulk'

Author: gitster

t/test-lib-functions.sh

@@ -308,7 +308,7 @@ test_commit_bulk () {
 	total=$1
 
 	add_from=
-	if git -C "$indir" rev-parse --verify "$ref"
+	if git -C "$indir" rev-parse --quiet --verify "$ref"
 	then
 		add_from=t
 	fi