patch 9.1.0309: crash when 'textwidth' > MAX_INT

Problem:  crash when 'textwidth' > MAX_INT (after vv9.1.0055)
          (Zoltan Balogh)
Solution: limit textwidth to MAX_INT

fixes: #14482
closes: #14489

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 87e98d5..b9db49e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    309,
+/**/
     308,
 /**/
     307,