updated for version 7.4.483

Problem:    A 0x80 byte is not handled correctly in abbreviations.
Solution:   Unescape special characters. Add a test. (Christian Brabandt)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    483,
 /**/
     482,
 /**/