updated for version 7.3.277

Problem:    MS-Windows: some characters do not show in dialogs.
Solution:   Use the wide methods when available. (Yanwei Jia)

src/version.c

@@ -709,6 +709,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    277,
 /**/
     276,
 /**/