Tweak some docs in the vcs module.

This is an effective no-op to test deploys of the newly merged es branch.

dxr/vcs.py

@@ -1,19 +1,21 @@
-"""Let DXR understand the concept of version control systems. The main entry
-points are `tree_to_repos`, which produces a mapping of roots to VCS objects
-for each version control root discovered under the provided tree, and
-`path_to_vcs`, which returns a VCS object for the version control system that
-tracks the given path. Currently supported VCS are Mercurial, Git, and
-Perforce.
+"""DXR's concept of version control systems
+
+The main entry points are `tree_to_repos`, which produces a mapping of roots
+to VCS objects for each version control root discovered under the provided
+tree, and `path_to_vcs`, which returns a VCS object for the version control
+system that tracks the given path. Currently supported VCSs are Mercurial,
+Git, and Perforce.
 
 Currently supported upstream views:
 - git (github)
 - mercurial (hgweb)
 
-Todos:
-- add gitweb support for git
-- add cvs, svn, bzr support
-- produce in-DXR blame information using VCSs
-- check if the mercurial paths are specific to Mozilla's customization or not.
+TODO:
+- Add gitweb support for git.
+- Add cvs, svn, bzr support.
+- Produce in-DXR blame information using VCSs.
+- Check if the mercurial paths are specific to Mozilla's customization or not.
+
 """
 import marshal
 import os
@@ -276,8 +278,10 @@ def display_rev(self, path):
         info = self.have[path]
         return '#' + info['haveRev']
 
+
 every_vcs = [Mercurial, Git, Perforce]
 
+
 def tree_to_repos(tree):
     """Given a TreeConfig, return a mapping {root: Vcs object} where root is a
     directory under tree.source_folder where root is a directory under
@@ -358,4 +362,3 @@ def vcs_for_path(self, path):
                 self._path_cache[path] = vcs
                 break
         return self._path_cache.get(path)
-