Fix util/update_wiki.py warnings and be consistent in declare_lint! invocations

src/cyclomatic_complexity.rs

@@ -18,8 +18,10 @@ use utils::{in_macro, LimitStack, span_help_and_lint};
 /// **Known problems:** Sometimes it's hard to find a way to reduce the complexity
 ///
 /// **Example:** No. You'll see it when you get the warning.
-declare_lint! { pub CYCLOMATIC_COMPLEXITY, Warn,
-    "finds functions that should be split up into multiple functions" }
+declare_lint! {
+    pub CYCLOMATIC_COMPLEXITY, Warn,
+    "finds functions that should be split up into multiple functions"
+}
 
 pub struct CyclomaticComplexity {
     limit: LimitStack,