patch 8.2.2828: Coverity complains about not checking rename() return value

Problem:    Coverity complains about not checking the rename() return value.
Solution:   Add "(void)", can't do anything in case of a failure.

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2828,
 /**/
     2827,
 /**/