patch 9.0.1343: check for OSC escape sequence doesn't work

Problem:    Check for OSC escape sequence doesn't work.
Solution:   Move square bracket to the right place. (Johan Mattsson,
            closes #12048)

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1343,
 /**/
     1342,
 /**/