Rename "pathos" package to "path".

pkg/docgen/lib/src/io.dart

 library io;
-/// This is a helper library to make working with io easier. 
-// TODO(janicejl): listDir, canonicalize, resolveLink, and linkExists are from  
-// pub/lib/src/io.dart. If the io.dart file becomes a package, should remove 
-// copy of the functions. 
+/// This is a helper library to make working with io easier.
+// TODO(janicejl): listDir, canonicalize, resolveLink, and linkExists are from
+// pub/lib/src/io.dart. If the io.dart file becomes a package, should remove
+// copy of the functions.
 
 import 'dart:collection';
 import 'dart:io';
-import 'package:pathos/path.dart' as path;
+import 'package:path/path.dart' as path;
 
 /// Lists the contents of [dir]. If [recursive] is `true`, lists subdirectory
 /// contents (defaults to `false`). If [includeHidden] is `true`, includes files
 /// and directories beginning with `.` (defaults to `false`).
 ///
 /// The returned paths are guaranteed to begin with [dir].
 List<String> listDir(String dir, {bool recursive: false,
     bool includeHidden: false}) {
   List<String> doList(String dir, Set<String> listedDirectories) {
     var contents = <String>[];
 
     // Avoid recursive symlinks.
     var resolvedPath = canonicalize(dir);
     if (listedDirectories.contains(resolvedPath)) return [];
 
     listedDirectories = new Set<String>.from(listedDirectories);
     listedDirectories.add(resolvedPath);
-    
+
     var children = <String>[];
     for (var entity in new Directory(dir).listSync()) {
       if (!includeHidden && path.basename(entity.path).startsWith('.')) {
         continue;
       }
 
       contents.add(entity.path);
       if (entity is Directory) {
         // TODO(nweiz): don't manually recurse once issue 4794 is fixed.
         // Note that once we remove the manual recursion, we'll need to
@@ skipping 104 matching lines @@
     seen.add(link);
     link = path.normalize(path.join(
         path.dirname(link), new Link(link).targetSync()));
   }
   return link;
 }
 
 /// Returns whether [link] exists on the file system. This will return `true`
 /// for any symlink, regardless of what it points at or whether it's broken.
 bool linkExists(String link) => new Link(link).existsSync();