def add_slash(url):
    if not url.endswith('/'):
        url = url + '/'
    return url
Calls the given management command, but only if it's not a dry run.
dataset/ETHPy150Open toastdriven/itty/itty.py/add_slash--crossover with--dataset/ETHPy150Open etianen/django-herokuapp/herokuapp/management/commands/base.py/HerokuCommandMixin.call_command