patch 7.4.1663

Problem:    In tests it's often useful to check if a pattern matches.
Solution:   Add assert_match().

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1663,
 /**/
     1662,
 /**/