patch 8.2.0812: mapset() does not properly handle <> notation

Problem:    mapset() does not properly handle <> notation.
Solution:   Convert <> codes. (closes #6116)
diff --git a/src/version.c b/src/version.c
index 3bd0ec4..7d860b2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    812,
+/**/
     811,
 /**/
     810,