patch 8.0.1233: typo in dos installer

Problem:    Typo in dos installer.
Solution:   Remove comma.
diff --git a/src/version.c b/src/version.c
index c600dc9..d6b3209 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1233,
+/**/
     1232,
 /**/
     1231,