Fixed #9283 -- Deliberately silence one deprecation warning raised by python 2.6.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9148 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/management/commands/makemessages.py

 import re
 import os
 import sys
+import warnings
 from itertools import dropwhile
 from optparse import make_option
+
 from django.core.management.base import CommandError, BaseCommand
 
 try:
@@ -10,6 +12,10 @@ try:
 except NameError:
     from sets import Set as set     # For Python 2.3
 
+# Intentionally silence DeprecationWarnings about os.popen3 in Python 2.6. It's
+# still sensible for us to use it, since subprocess didn't exist in 2.3.
+warnings.filterwarnings('ignore', category=DeprecationWarning, message=r'os\.popen3')
+
 pythonize_re = re.compile(r'\n\s*//')
 
 def handle_extensions(extensions=('html',)):