Fix sanity tests.

changelogs/fragments/403-sanity.yml

@@ -0,0 +1,2 @@
+trivial:
+  - "Fix currently failing sanity tests by properly specifying falsy defaults in module documentation (https://github.com/ansible-collections/ansible.posix/pull/403)."

plugins/modules/acl.py

@@ -44,6 +44,7 @@ options:
     description:
     - The actual user or group that the ACL applies to when matching entity types user or group are selected.
     type: str
+    default: ''
   etype:
     description:
     - The entity type of the ACL to apply, see C(setfacl) documentation for more info.

plugins/modules/rhel_rpm_ostree.py

@@ -35,6 +35,7 @@ options:
     aliases: [ pkg ]
     type: list
     elements: str
+    default: []
   state:
     description:
       - Whether to install (C(present) or C(installed), C(latest)), or remove (C(absent) or C(removed)) a package.