Revert r100162 "Change default --jobs value from 1 to 4.""

One day it'll work. It still breaks webkit.

TBR=dpranke@chromium.org
BUG=
TEST=


Review URL: http://codereview.chromium.org/7850021

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@100168 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/gclient.py b/gclient.py
index fca0d90..69b524c 100644
--- a/gclient.py
+++ b/gclient.py
@@ -1281,7 +1281,7 @@
 def Parser():
   """Returns the default parser."""
   parser = optparse.OptionParser(version='%prog ' + __version__)
-  parser.add_option('-j', '--jobs', default=4, type='int',
+  parser.add_option('-j', '--jobs', default=1, type='int',
                     help='Specify how many SCM commands can run in parallel; '
                           'default=%default')
   parser.add_option('-v', '--verbose', action='count', default=0,