patch 7.4.1786

Problem:    Compiled-in colors do not match rgb.txt.
Solution:   Use the rgb.txt colors. (Kazunobu Kuriyama)

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1786,
 /**/
     1785,
 /**/