In a future patch, we plan on running tests with `set -o pipefail`.
However, since grep can return failure in the case that no lines are
matched, this can trigger a failure in a pipe in the case where grep is
being used as a filter.

Use test_grep_return_success() instead of grep so that we don't fail
even if we have no matching lines.

Signed-off-by: Denton Liu <redacted>
---
 t/t5703-upload-pack-ref-in-want.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/t/t5703-upload-pack-ref-in-want.sh b/t/t5703-upload-pack-ref-in-want.sh
index 9f6d837720..c4f9698398 100755
--- a/t/t5703-upload-pack-ref-in-want.sh
+++ b/t/t5703-upload-pack-ref-in-want.sh

@@ -19,7 +19,7 @@ get_actual_commits () {
 		}' <out | test-tool pkt-line unpack-sideband >o.pack &&
 	git index-pack o.pack &&
 	git verify-pack -v o.idx >objs &&
-	grep commit objs | cut -c-40 | sort >actual_commits
+	test_grep_return_success commit objs | cut -c-40 | sort >actual_commits
 }
 
 check_output () {

-- 
2.24.0.399.gf8350c9437