Update plugins/echo.py

plugins/echo.py

@@ -91,10 +91,10 @@ async def echo(bot, update):
     else:
         command_to_exec = ["yt-dlp", "--no-warnings", "--allow-dynamic-mpd", "-j", url]
     if youtube_dl_username is not None:
-        command_to_exec.append("--u")
+        command_to_exec.append("--username")
         command_to_exec.append(youtube_dl_username)
     if youtube_dl_password is not None:
-        command_to_exec.append("--p")
+        command_to_exec.append("--password")
         command_to_exec.append(youtube_dl_password)
     logger.info(command_to_exec)
     chk = await bot.send_message(