patch 8.2.3113: no error when for loop variable shadows script variable

Problem:    No error when for loop variable shadows script variable.
Solution:   Check for the error. (closes #8512)
diff --git a/src/version.c b/src/version.c
index 160b85f..b0d8dae 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3113,
+/**/
     3112,
 /**/
     3111,