Selection parsing fix.

pkg/analyzer/bin/formatter.dart

 #!/usr/bin/env dart
 
 // Copyright (c) 2013, 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.
 
 import 'dart:convert';
 import 'dart:io';
 
 import 'package:args/args.dart';
@@ skipping 82 matching lines @@
 Selection _parseSelection(selectionOption) {
   if (selectionOption != null) {
     var units = selectionOption.split(',');
     if (units.length == 2) {
       var offset = _toInt(units[0]);
       var length = _toInt(units[1]);
       if (offset != null && length != null) {
         return new Selection(offset, length);
       }
     }
-    throw new FormatterException('Selections are specified as integer pairs '
-                                 '(e.g., "(offset, length)".');
   }
+  throw new FormatterException('Selections are specified as integer pairs '
+                               '(e.g., "(offset, length)".');
 }
 
 int _toInt(str) => int.parse(str, onError: (_) => null);
 
 _formatPaths(paths) {
   paths.forEach((path) {
     if (FileSystemEntity.isDirectorySync(path)) {
       _formatDirectory(new Directory(path));
     } else {
       _formatFile(new File(path));
@@ skipping 112 matching lines @@
                      'offset': formatResult.selection.offset,
                      'length': formatResult.selection.length
                   }
     });
 
 /// Log the given [msg].
 _log(String msg) {
   //TODO(pquitslund): add proper log support
   print(msg);
 }