patch 7.4.1767

Problem:    When installing Vim on a GTK system the icon cache is not updated.
Solution:   Update the GTK icon cache when possible. (Kazunobu Kuriyama)

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1767,
 /**/
     1766,
 /**/