updated for version 7.3.685
Problem:    No test for what patch 7.3.673 fixes.
Solution:   Add a test. (Christian Brabandt)
diff --git a/src/testdir/test53.ok b/src/testdir/test53.ok
index 0a2a6f4..179b1b2 100644
--- a/src/testdir/test53.ok
+++ b/src/testdir/test53.ok
@@ -25,4 +25,5 @@
 zerowidth pattern
 elete first and last char
  uniquepattern
+my very excellent mongoose just served us nachos
 end: