actually skip bad/broken module files found

lib/ansible/plugins/__init__.py

@@ -371,6 +371,7 @@ class PluginLoader:
                 obj = getattr(self._module_cache[path], self.class_name)
             except AttributeError as e:
                 display.warning("Skipping plugin (%s) as it seems to be invalid: %s" % (path, to_unicode(e)))
+                continue
 
             if self.base_class:
                 # The import path is hardcoded and should be the right place,