test: discard kill's output

diff --git a/test/units/testsuite-23.sh b/test/units/testsuite-23.sh
index a6b8da34c9ae3640a628115d86946f2efc1300bc..34899070f1790acb7ec00951ac2c58e67f7989eb 100755 (executable)
--- a/test/units/testsuite-23.sh
+++ b/test/units/testsuite-23.sh
@@ -46,7 +46,7 @@ handle_signal() {
 wait_harder() {
     local pid="${1:?}"
 
-    while kill -0 "$pid"; do
+    while kill -0 "$pid" &>/dev/null; do
         wait "$pid" || :
     done