updated for version 7.3.308

Problem:    Writing to 'verbosefile' has problems, e.g. for :highlight.
Solution:   Do not use a separate verbose_write() function but write with the
            same code that does redirecting. (Yasuhiro Matsumoto)

src/version.c

@@ -709,6 +709,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    308,
 /**/
     307,
 /**/