def _comment_line(line):
    line = line.rstrip()
    if line:
        return '# '+line
    else:
        return '#'
Return all addrs of vhost with the port replaced with the specified.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/test/_doctest.py/_comment_line--crossover with--dataset/ETHPy150Open letsencrypt/letsencrypt/certbot-apache/certbot_apache/configurator.py/ApacheConfigurator._get_proposed_addrs