updated for version 7.2.422

Problem:    May get E763 when using spell dictionaries.
Solution:   Avoid utf-8 case folded character to be truncated to 8 bits and
            differ from latin1. (Dominique Pelle)

src/version.c

@@ -681,6 +681,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    422,
 /**/
     421,
 /**/