patch 8.2.3588: break statement is never reached

Problem:    Break statement is never reached.
Solution:   Rely on return value of set_chars_option() not changing.
            (closes #9103)

src/version.c

@@ -757,6 +757,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3588,
 /**/
     3587,
 /**/