[NaCl SDK] Make build_projects quiet by default.

native_client_sdk/src/build_tools/generate_index.py

 # Copyright (c) 2012 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.
 
 import collections
 
 import easy_template
 
 def CmpByName(x, y):
   return cmp(x['NAME'], y['NAME'])
   
 class LandingPage(object):
   def __init__(self):
     self.section_list = ['Getting Started', 'API', 'Demo', 'Tutorial']
     self.section_map = collections.defaultdict(list)
 
   def GeneratePage(self, template_path):
     with open(template_path) as template_file:
       template = template_file.read()
 
     sec_map = {}
     for section_name in self.section_map:
       items = self.section_map[section_name]
       items = sorted(items, cmp=CmpByName)
       sec_map[section_name] = items
-      print 'Add section ' + section_name
 
     template_dict = { 'section_map': sec_map }
     return easy_template.RunTemplateString(template, template_dict)
 
   def AddDesc(self, desc):
     group = desc['GROUP']
     assert group in self.section_list
     self.section_map[group].append(desc)