patch 7.4.855

Problem:    GTK: font glitches for combining characters
Solution:   Use pango_shape_full() instead of pango_shape(). (luchr, PR #393)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    855,
 /**/
     854,
 /**/