Avoid format length warning.

Author: zoltanvb

menu/menu_driver.c

@@ -3499,25 +3499,25 @@ static int menu_dialog_iterate(
                   s2, sizeof(s2));
 
             snprintf(s, len,
-                  "%s"
+                  "%.250s"
                   "[%s]: "
-                  "%-20s\n"
+                  "%-20.20s\n"
                   "[%s]: "
-                  "%-20s\n"
+                  "%-20.20s\n"
                   "[%s]: "
-                  "%-20s\n"
+                  "%-20.20s\n"
                   "[%s]: "
-                  "%-20s\n"
+                  "%-20.20s\n"
                   "[%s]: "
-                  "%-20s\n"
+                  "%-20.20s\n"
                   "[%s]: "
-                  "%-20s\n"
+                  "%-20.20s\n"
                   "[%s]: "
-                  "%-20s\n"
+                  "%-20.20s\n"
                   "[%s]: "
-                  "%-20s\n"
+                  "%-20.20s\n"
                   "[%s]: "
-                  "%-20s\n",
+                  "%-20.20s\n",
 
                   s2,