patch 7.4.1774

Problem:    Cterm true color feature has warnings.
Solution:   Add type casts.

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1774,
 /**/
     1773,
 /**/