[PATCH 7 of 7] check-code: reject import cStringIO

[timeless]

# HG changeset patch
# User timeless <timeless at mozdev.org>
# Date 1459974914 0
#      Wed Apr 06 20:35:14 2016 +0000
# Node ID 670b4e0794aebc10df2298a7bea28a9135589beb
# Parent  5d3336fefe3a4df0f907980361be7c5b3947eab3
check-code: reject import cStringIO

please use the util.stringio alias instead

diff --git a/contrib/check-code.py b/contrib/check-code.py
--- a/contrib/check-code.py
+++ b/contrib/check-code.py
@@ -316,6 +316,7 @@
     (r'def.*[( ]\w+=\{\}', "don't use mutable default arguments"),
     (r'\butil\.Abort\b', "directly use error.Abort"),
     (r'^import Queue', "don't use Queue, use util.queue + util.empty"),
+    (r'^import cStringIO', "don't use cStringIO.StringIO, use util.stringio"),
   ],
   # warnings
   [