patch 8.0.1233: typo in dos installer

Problem:    Typo in dos installer.
Solution:   Remove comma.
diff --git a/src/dosinst.c b/src/dosinst.c
index 5a4caac..94e8669 100644
--- a/src/dosinst.c
+++ b/src/dosinst.c
@@ -86,7 +86,7 @@
 enum
 {
     mouse_xterm = 1,
-    mouse_mswin,,
+    mouse_mswin,
     mouse_default
 };
 char	*(mouse_choices[]) =
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,