Silence pylint on Mac OSX 10.6

Also, increase the wait for socket binding to 0.2 seconds because OSX10.6 is
broken _and_ slow.

R=dpranke@chromium.org
BUG=
TEST=


Review URL: http://codereview.chromium.org/8749005

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@112277 0039d316-1c4b-4281-b951-d872f2087c98

subprocess2.py

@@ -182,7 +182,8 @@ class Popen(subprocess.Popen):
     fix('stderr')
 
     self.start = time.time()
-
+    # Silence pylint on MacOSX
+    self.returncode = None
     try:
       super(Popen, self).__init__(args, **kwargs)
     except OSError, e: