updated for version 7.3.334

Problem:    Latest MingW about XSUBPP referencing itself. (Gongqian Li)
Solution:   Rename the first use to XSUBPPTRY.

src/version.c

@@ -709,6 +709,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    334,
 /**/
     333,
 /**/