Tweaks to the analyzer_cli.

pkg/analyzer/lib/src/command_line/arguments.dart

 // Copyright (c) 2016, 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 analyzer.src.command_line.arguments;
 
 import 'dart:collection';
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/src/context/builder.dart';
@@ skipping 155 matching lines @@
   parser.addOption(sdkSummaryPathOption,
       help: 'The path to the Dart SDK summary file.', hide: hide);
   parser.addFlag(enableStrictCallChecksFlag,
       help: 'Fix issue 21938.',
       defaultsTo: false,
       negatable: false,
       hide: hide);
   parser.addFlag(enableInitializingFormalAccessFlag,
       help:
           'Enable support for allowing access to field formal parameters in a '
-          'constructor\'s initializer list',
+          'constructor\'s initializer list.',
       defaultsTo: false,
       negatable: false,
       hide: hide || ddc);
   parser.addFlag(enableSuperMixinFlag,
       help: 'Relax restrictions on mixins (DEP 34).',
       defaultsTo: false,
       negatable: false,
       hide: hide);
 }
 
@@ skipping 115 matching lines @@
           .replaceAll('\r\n', '\n')
           .replaceAll('\r', '\n')
           .split('\n')
           .where((String line) => line.isNotEmpty));
     } on FileSystemException catch (e) {
       throw new Exception('Failed to read file specified by $lastArg : $e');
     }
   }
   return args;
 }