patch 8.2.0831: compiler warnings for integer sizes

Problem:    Compiler warnings for integer sizes.
Solution:   Add type casts. (Mike Williams)
diff --git a/src/version.c b/src/version.c
index f088e61..f939822 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    831,
+/**/
     830,
 /**/
     829,