[Telemetry + tools/perf] Modify the pylint disable message to use symbolic name

tools/telemetry/telemetry/util/color_histogram.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Color Histograms and implementations of functions operating on them."""
 
 from __future__ import division
 
 import collections
 
@@ skipping 35 matching lines @@
       remainder += value1 * n2 - value2 * n1
       total += abs(remainder)
     assert remainder == 0, (
         '%s pixel(s) left over after computing histogram distance.'
         % abs(remainder))
   return abs(float(total) / n1 / n2)
 
 
 class ColorHistogram(
     collections.namedtuple('ColorHistogram', ['r', 'g', 'b', 'default_color'])):
-  # pylint: disable=W0232
+  # pylint: disable=no-init
   # pylint: disable=E1002
 
   def __new__(cls, r, g, b, default_color=None):
     return super(ColorHistogram, cls).__new__(cls, r, g, b, default_color)
 
   def Distance(self, other):
     total = 0
     for i in xrange(3):
       default_color = self[3][i] if self[3] is not None else None
       total += HistogramDistance(self[i], other[i], default_color)
     return total