updated for version 7.3.1219

Problem:    No test for using []] inside \%[].
Solution:   Add a test.

src/version.c

@@ -728,6 +728,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1219,
 /**/
     1218,
 /**/