Reformat 'len_utf8';

Author: bjoernager

library/core/src/char/methods.rs

@@ -1737,10 +1737,10 @@ impl EscapeDebugExtArgs {
 #[inline]
 const fn len_utf8(code: u32) -> usize {
     match code {
-        ..MAX_ONE_B   => 1,
-        ..MAX_TWO_B   => 2,
+        ..MAX_ONE_B => 1,
+        ..MAX_TWO_B => 2,
         ..MAX_THREE_B => 3,
-        _             => 4
+        _ => 4
     }
 }