Add missing newline after Actual value in fail message.

pkg/unittest/lib/src/numeric_matchers.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.
 
 part of matcher;
 
 /**
  * Returns a matcher which matches if the match argument is greater
  * than the given [value].
  */
@@ skipping 59 matching lines @@
  * A matcher which matches if the match argument is zero or positive.
  */
 const Matcher isNonNegative =
   const _OrderingComparison(0, true, false, true,
       'a non-negative value', false);
 
 bool _isNumeric(value) {
   return value is int || value is double;
 }
 
-class _OrderingComparison extends BaseMatcher {
+class _OrderingComparison extends Matcher {
   /** Expected value. */
   final _value;
   /** What to return if actual == expected */
   final bool _equalValue;
   /** What to return if actual < expected */
   final bool _lessThanValue;
   /** What to return if actual > expected */
   final bool _greaterThanValue;
   /** Textual name of the inequality */
   final String _comparisonDescription;
@@ skipping 35 matching lines @@
   }
 }
 
 /**
  * Returns a matcher which matches if the match argument is within [delta]
  * of some [value]; i.e. if the match argument is greater than
  * than or equal [value]-[delta] and less than or equal to [value]+[delta].
  */
 Matcher closeTo(value, delta) => new _IsCloseTo(value, delta);
 
-class _IsCloseTo extends BaseMatcher {
+class _IsCloseTo extends Matcher {
   final num _value, _delta;
 
   const _IsCloseTo(this._value, this._delta);
 
   bool matches(item, Map matchState) {
     if (!_isNumeric(item)) {
       return false;
     }
     var diff = item - _value;
     if (diff < 0) diff = -diff;
@@ skipping 37 matching lines @@
  * than [low] and less than or equal to [high].
  */
 Matcher inOpenClosedRange(low, high) => new _InRange(low, high, false, true);
 
 /**
  * Returns a matcher which matches if the match argument is greater
  * than or equal to a [low] and less than [high].
  */
 Matcher inClosedOpenRange(low, high) => new _InRange(low, high, true, false);
 
-class _InRange extends BaseMatcher {
+class _InRange extends Matcher {
   final num _low, _high;
   final bool _lowMatchValue, _highMatchValue;
 
   const _InRange(this._low, this._high,
     this._lowMatchValue, this._highMatchValue);
 
   bool matches(value, Map matchState) {
     if (value is !num) {
       return false;
     }
@@ skipping 20 matching lines @@
       return mismatchDescription.
           addDescriptionOf(item).
           add(' not numeric');
     } else {
       return super.describeMismatch(item, mismatchDescription,
           matchState, verbose);
     }
   }
 }