more updates to using f string

daemon/core/xml/corexml.py

@@ -600,7 +600,7 @@ class CoreXmlReader(object):
             name = hook.get("name")
             state = hook.get("state")
             data = hook.text
-            hook_type = "hook:%s" % state
+            hook_type = f"hook:{state}"
             logging.info("reading hook: state(%s) name(%s)", state, name)
             self.session.set_hook(
                 hook_type, file_name=name, source_name=None, data=data