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.
diff --git a/src/version.c b/src/version.c
index f20c009..444f35f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2828,
+/**/
     2827,
 /**/
     2826,