Fix non-matching defaults in docs (#5446)

* Allow to pass options as lookup options.

* Adjust tests.

* Fix non-matching defaults.

plugins/modules/storage/zfs/zfs.py

@@ -38,6 +38,7 @@ options:
       - A dictionary of zfs properties to be set.
       - See the zfs(8) man page for more information.
     type: dict
+    default: {}
 notes:
   - C(check_mode) is supported, but in certain situations it may report a task
     as changed that will not be reported as changed when C(check_mode) is disabled.

plugins/modules/storage/zfs/zfs_facts.py

@@ -52,6 +52,7 @@ options:
         description:
             - Specifies recursion depth.
         type: int
+        default: 0
 '''
 
 EXAMPLES = '''