docs: def lookup(self, profile, setting):
          """ Check koji.conf.d files for this profile's setting.
  
          :param setting: ``str`` like "server" (for kojihub) or "weburl"
          :returns: ``str``, value for this setting
          """
          for path in profiles():
              cfg = SafeConfigParser()
              cfg.read(path)
              if profile not in cfg.sections():
                  continue
              if not cfg.has_option(profile, setting):
                  continue
              return cfg.get(profile, setting)