pybind/mgr: Fix missing empty lines in mgr_module.py

The inline function documentation needs an empty
line between description and metadata.
Otherwise automethod from docs renders the metadata
as text together with the description instead of
rendering it as function metadata, e.g. parameters
and return value.

Signed-off-by: Ville Ojamo <[email protected]>

Author: bluikko

src/pybind/mgr/mgr_module.py

@@ -2167,7 +2167,8 @@ def set_module_option_ex(self, module: str, key: str, val: OptionValue) -> None:
     @API.expose
     def set_localized_module_option(self, key: str, val: Optional[str]) -> None:
         """
-        Set localized configuration for this ceph-mgr instance
+        Set localized configuration for this ceph-mgr instance.
+
         :param str key:
         :param str val:
         :return: str