fix padding and put clippy someplaces

clippy_dev/src/main.rs

@@ -103,6 +103,7 @@ fn update_lints(update_mode: &UpdateMode) {
 pub mod lint;
 pub use lint::Lint;
 pub use lint::LINT_LEVELS;
+pub use lint::LintLevel;
 
 pub const ALL_LINTS: [Lint; {}] = {:#?};\n",
             sorted_usable_lints.len(),

src/driver.rs

@@ -130,6 +130,11 @@ Available lint options:
             .iter()
             .find(|level_mapping| level_mapping.0 == lint.group)
             .map(|(_, level)| level)
+            .map(|level| match level {
+                LintLevel::Allow => "allow",
+                LintLevel::Warn => "warn",
+                LintLevel::Deny => "deny",
+            })
             .unwrap()
     };
 
@@ -184,7 +189,7 @@ Available lint options:
         s
     };
 
-    println!("Lint groups provided by rustc:\n");
+    println!("Lint groups provided by clippy:\n");
     println!("    {}  sub-lints", padded("name"));
     println!("    {}  ---------", padded("----"));
 
@@ -198,7 +203,7 @@ Available lint options:
                 .map(|name| name.replace("_", "-"))
                 .collect::<Vec<String>>()
                 .join(", ");
-            println!("    {}  {}", padded(&name), desc);
+            println!("    {}  {}", padded(&scoped(&name)), desc);
         }
         println!("\n");
     };

src/lintlist/lint.rs

@@ -15,18 +15,6 @@ pub enum LintLevel {
     Deny,
 }
 
-impl std::fmt::Display for LintLevel {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        let s = match self {
-            LintLevel::Allow => "allow",
-            LintLevel::Warn => "warn",
-            LintLevel::Deny => "deny",
-        };
-
-        write!(f, "{}", s)
-    }
-}
-
 pub const LINT_LEVELS: [(&str, LintLevel); 8] = [
     ("correctness", LintLevel::Deny),
     ("style", LintLevel::Warn),

src/lintlist/mod.rs

@@ -3,6 +3,7 @@
 pub mod lint;
 pub use lint::Lint;
 pub use lint::LINT_LEVELS;
+pub use lint::LintLevel;
 
 pub const ALL_LINTS: [Lint; 304] = [
     Lint {