Fix cases where td->terminate is set, but terminate clock not marked

Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/verify.c b/verify.c
index 11963e1..e59a4b2 100644
--- a/verify.c
+++ b/verify.c
@@ -847,7 +847,7 @@
 
 done:
 	if (ret && td->o.verify_fatal)
-		td->terminate = 1;
+		fio_mark_td_terminate(td);
 
 	return ret;
 }
@@ -1205,7 +1205,7 @@
 	if (ret) {
 		td_verror(td, ret, "async_verify");
 		if (td->o.verify_fatal)
-			td->terminate = 1;
+			fio_mark_td_terminate(td);
 	}
 
 done: