Get rid of all the library tags.

lib/src/version_range.dart

 // Copyright (c) 2014, 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 pub_semver.src.version_range;
-
 import 'version.dart';
 import 'version_constraint.dart';
 import 'version_union.dart';
 
 /// Constrains versions to a fall within a given range.
 ///
 /// If there is a minimum, then this only allows versions that are at that
 /// minimum or greater. If there is a maximum, then only versions less than
 /// that are allowed. In other words, this allows `>= min, < max`.
 class VersionRange implements VersionConstraint {
@@ skipping 311 matching lines @@
     if (max != null) {
       if (min != null) buffer.write(' ');
       buffer.write(includeMax ? '<=' : '<');
       buffer.write(max);
     }
 
     if (min == null && max == null) buffer.write('any');
     return buffer.toString();
   }
 }