Clarify what was expected and what was actually received.

Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 tests/monitor/run-tests.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/monitor/run-tests.sh b/tests/monitor/run-tests.sh
index 67d3e618cee07..03091d1745212 100755
--- a/tests/monitor/run-tests.sh
+++ b/tests/monitor/run-tests.sh
@@ -5,7 +5,7 @@ debug=false
 test_json=false
 
 mydiff() {
-	diff -w -I '^# ' "$@"
+	diff -w -I '^# ' --label "expected" --label "got" "$@"
 }
 
 err() {
-- 
2.51.0