Format all files under tools and utils directory.

tools/line_doc_comments.dart

 #!/usr/bin/env dart
 
 /// Converts block-style Doc comments in Dart code to line style.
 library line_doc_comments;
+
 import 'dart:io';
 
 import '../pkg/path/lib/path.dart' as path;
 
 final oneLineBlock = new RegExp(r'^(\s*)/\*\*\s?(.*)\*/\s*$');
 final startBlock = new RegExp(r'^(\s*)/\*\*(.*)$');
 final blockLine = new RegExp(r'^\s*\*\s?(.*)$');
 final endBlock = new RegExp(r'^\s*\*/\s*$');
 
 main(List<String> args) {
   if (args.length != 1) {
     print('Converts "/**"-style block doc comments in a directory ');
     print('containing Dart code to "///"-style line doc comments.');
     print('');
     print('Usage: line_doc_coments.dart <dir>');
     return;
   }
 
   var dir = new Directory(args[0]);
-  dir.list(recursive: true, followLinks: false).listen(
-      (entity) {
-        if (entity is File) {
-          var file = entity.path;
-          if (path.extension(file) != '.dart') return;
-          fixFile(file);
-        }
-      });
+  dir.list(recursive: true, followLinks: false).listen((entity) {
+    if (entity is File) {
+      var file = entity.path;
+      if (path.extension(file) != '.dart') return;
+      fixFile(file);
+    }
+  });
 }
 
 void fixFile(String path) {
   var file = new File(path);
   file.readAsLines().then((lines) => fixContents(lines, path)).then((fixed) {
     return new File(path).writeAsString(fixed);
   }).then((file) {
     print(file.path);
   });
 }
@@ skipping 67 matching lines @@
         print('$_PURPLE$path$_NO_COLOR:$_RED$linesOut$_NO_COLOR: '
             'line exceeds 80 cols:\n    $line');
       }
 
       buffer.write('$line\n');
     }
   }
 
   return buffer.toString();
 }