patch 9.0.0140: execute() does not use the "legacy" command modifier

Problem:    execute() does not use the "legacy" command modifier.
Solution:   pass the command modifier in sticky_cmdmod_flags. (Kota Kato,
            closes #10845)

src/version.c

@@ -735,6 +735,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    140,
 /**/
     139,
 /**/