patch 7.4.938

Problem:    X11 and GTK have moure mouse buttons than Vim supports.
Solution:   Recognize more mouse buttons. (Benoit Pierre, closes #498)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    938,
 /**/
     937,
 /**/