tests: run_tests should exit with failed test status if running with -H

Signed-off-by: Martin Schwenke <martin@meltin.net>

(This used to be ctdb commit 6eb7fa572e7fc212332ddd68793e3f35161baf7c)

ctdb/tests/scripts/run_tests

@@ -199,5 +199,9 @@ fi
 rm -f "$sf"
 
 if [ $tests_failed -gt 0 ] ; then
-    exit 1
+    if $no_header ; then
+	exit $status
+    else
+	exit 1
+    fi
 fi