Update future-fstrings and stop concatenating multiline strings

mautrix_telegram/commands/handler.py

@@ -27,7 +27,7 @@ def command_handler(needs_auth=True, management_only=False, needs_admin=False, n
         def wrapper(evt):
             if management_only and not evt.is_management:
                 return evt.reply(f"`{evt.command}` is a restricted command:"
-                                 + "you may only run it in management rooms.")
+                                 "you may only run it in management rooms.")
             elif needs_auth and not evt.sender.logged_in:
                 return evt.reply("This command requires you to be logged in.")
             elif needs_admin and not evt.sender.is_admin:
@@ -112,6 +112,6 @@ class CommandHandler:
         except FloodWaitError as e:
             return evt.reply(f"Flood error: Please wait {format_duration(e.seconds)}")
         except Exception:
-            self.log.exception(f"Fatal error handling command "
-                               + f"{evt.command} {' '.join(args)} from {sender.mxid}")
+            self.log.exception("Fatal error handling command "
+                               f"{evt.command} {' '.join(args)} from {sender.mxid}")
             return evt.reply("Fatal error while handling command. Check logs for more details.")