patch 7.4.2182

Problem:    Color Grey40 used in startup but not in the short list.
Solution:   Add Grey40 to the builtin colors.

src/version.c

@@ -763,6 +763,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2182,
 /**/
     2181,
 /**/