Merge pull request #11147 from sivel/module-docs-import-mutablemapping

Import missing MutableMapping class for module_docs

lib/ansible/utils/module_docs.py

@@ -23,6 +23,7 @@ import ast
 import yaml
 import traceback
 
+from collections import MutableMapping
 from ansible.plugins import fragment_loader
 
 # modules that are ok that they do not have documentation strings