fix !missing for older clients

MultiServer.py

@@ -309,7 +309,6 @@ async def countdown(ctx: Context, timer):
             await asyncio.sleep(1)
         ctx.notify_all(f'[Server]: GO')
 
-
 async def missing(ctx: Context, client: Client, locations: list):
     await ctx.send_msgs(client, [['Missing', {
         'locations': json.dumps(locations)
@@ -655,13 +654,20 @@ class ClientMessageProcessor(CommandProcessor):
 
     def _cmd_missing(self) -> bool:
         """List all missing location checks from the server's perspective"""
+
         locations = []
         for location_id, location_name in Regions.lookup_id_to_name.items():  # cheat console is -1, keep in mind
             if location_id != -1 and location_id not in self.ctx.location_checks[self.client.team, self.client.slot]:
                 locations.append(location_name)
 
         if len(locations) > 0:
-            asyncio.create_task(missing(self.ctx, self.client, locations))
+            if self.client.version < [2, 3, 0]:
+                buffer = ""
+                for location in locations:
+                    buffer += f'Missing: {location}\n'
+                self.output(buffer + f"Found {len(locations)} missing location checks")
+            else:
+                asyncio.create_task(missing(self.ctx, self.client, locations))
         else:
             self.output("No missing location checks found.")
         return True