[conf] Fix ModuleConf to call super() correctly.

BaseConfig takes 'config' option which was omitted.

Closes: rpm-software-management#1130
Approved by: m-blaha

Author: Daniel Mach

dnf/conf/config.py

@@ -611,7 +611,8 @@ class ModuleConf(BaseConfig):
     """Option definitions for module INI file sections."""
 
     def __init__(self, section=None, parser=None):
-        super(ModuleConf, self).__init__(section, parser)
+        config = None
+        super(ModuleConf, self).__init__(config, section, parser)
         # module name, stream and installed version
         self.name = StringOption(section)
         self.stream = StringOption("")