patch 7.4.1749

Problem:    When using GTK 3.20 there are a few warnings.
Solution:   Use new functions when available. (Kazunobu Kuriyama)

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1749,
 /**/
     1748,
 /**/