matcher: fixed status file, formatting, tweaks to readme

lib/src/description.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library matcher.description;
 
 import 'interfaces.dart';
 import 'pretty_print.dart';
 
 /// The default implementation of [Description]. This should rarely need
@@ skipping 33 matching lines @@
       value.describe(this);
     } else {
       add(prettyPrint(value, maxLineLength: 80, maxItems: 25));
     }
     return this;
   }
 
   /// Append an [Iterable] [list] of objects to the description, using the
   /// specified [separator] and framing the list with [start]
   /// and [end].
-  Description addAll(String start, String separator, String end,
-                       Iterable list) {
+  Description addAll(
+      String start, String separator, String end, Iterable list) {
     var separate = false;
     add(start);
     for (var item in list) {
       if (separate) {
         add(separator);
       }
       addDescriptionOf(item);
       separate = true;
     }
     add(end);
     return this;
   }
 }