Cleanup message at the end of the lint list output

Author: flip1995

compiler/rustc_driver/src/lib.rs

@@ -961,10 +961,7 @@ Available lint options:
 
     match (loaded_plugins, plugin.len(), plugin_groups.len()) {
         (false, 0, _) | (false, _, 0) => {
-            println!(
-                "Compiler plugins can provide additional lints and lint groups. To see a \
-                      listing of these, re-run `rustc -W help` with a crate filename."
-            );
+            println!("Compiler plugins can provide additional lints and lint groups.");
         }
         (false, ..) => panic!("didn't load lint plugins but got them anyway!"),
         (true, 0, 0) => println!("This crate does not load any lint plugins or lint groups."),