Fixed warnings caused by non-existing messagehub channels.

Changed the setting registration, removed the warnings.
Loot roll messages are more obvious now.
Superadmins are meant to stay mostily hidden, but are being exposed in !system again.

modules/core/system/util_controller.py

@@ -9,6 +9,7 @@ import psutil
 from core.chat_blob import ChatBlob
 from core.command_param_types import Any, Character
 from core.decorators import instance, command
+from core.lookup.character_service import CharacterService
 from core.util import Util
 
 
@@ -23,6 +24,7 @@ class UtilController:
         self.access_service = registry.get_instance("access_service")
         self.event_service = registry.get_instance("event_service")
         self.public_channel_service = registry.get_instance("public_channel_service")
+        self.character_service: CharacterService = registry.get_instance("character_service")
         self.getresp = registry.get_instance("translation_service").get_response
 
     @command(command="checkaccess", params=[Character("character")], access_level="moderator",
@@ -94,14 +96,13 @@ class UtilController:
             bots_connected += f"{_id} - {conn.char_name} ({conn.char_id})\n"
 
         for channel_id, name in self.public_channel_service.get_all_public_channels().items():
-            pub_channels += "%s - <highlight>%d</highlight>\n" % (name, channel_id)
+            pub_channels += f"{name} - <highlight>{channel_id:d}</highlight>\n"
 
         for event_type in self.event_service.get_event_types():
-            event_types += "%s\n" % event_type
+            event_types += f"{event_type}\n"
 
         for access_level in self.access_service.get_access_levels():
-            access_levels += "%s (%d)\n" % (access_level["label"], access_level["level"])
-
+            access_levels += f"{access_level['label']} ({access_level['level']:d})\n"
         blob = self.getresp("module/system", "status_blob", {
             "bot_ver": f"{self.bot.major_version}.{self.bot.minor_version}",
             "os_ver": platform.system() + " " + platform.release(),
@@ -112,7 +113,7 @@ class UtilController:
             "db_type": self.db.type if not self.db.MARIADB else f"{self.db.MARIADB} with "
                                                                 f"{self.db.pool_size} active connections",
             "mem_usage": self.util.format_number(psutil.Process(os.getpid()).memory_info().rss / 1024),
-            "superadmin": "Not Set",
+            "superadmin": ", ".join([self.character_service.get_char_name(x) or str(x) for x in self.bot.superadmin]),
             "bl_used": self.buddy_service.get_buddy_list_size(),
             "bl_size": self.buddy_service.buddy_list_size,
             "uptime": self.util.time_to_readable(int(time.time()) - self.bot.start_time, max_levels=None),