print output when the first test succeeded

src/objective-c/tests/run_tests.sh

@@ -66,6 +66,7 @@ while [ $retries -lt 3 ]; do
     echo "Failed with code 65 (DTXProxyChannel error 1); retry."
     retries=$(($retries+1))
   elif [ $return_code == 0 ]; then
+    echo "$out"
     break
   else
     echo "$out"