Fix gclient revert for external, switched and conflicted directories.

gclient.py

Index: gclient.py
diff --git a/gclient.py b/gclient.py
index bc70ccb8129cc4822bfd6a0b79aca5def844ede6..1a440731a92575ef11442bd7719f0026bd551660 100755
--- a/gclient.py
+++ b/gclient.py
@@ -69,6 +69,7 @@ __author__ = "darinf@gmail.com (Darin Fisher)"
 __version__ = "0.3.3"
 
 import errno
+import logging
 import optparse
 import os
 import re
@@ -1168,6 +1169,9 @@ def Main(argv):
     option_parser.print_help()
     return 0
 
+  if options.verbose:
+    logging.basicConfig(level=logging.DEBUG)
+
   # Files used for configuration and state saving.
   options.config_filename = os.environ.get("GCLIENT_FILE", ".gclient")
   options.entries_filename = ".gclient_entries"