Areafix/Filefix Scan/Rescan commands cannot use +/- in front of area name

app/Classes/FTN/Process/Netmail/Robot/Areafix/Scan.php

@@ -16,7 +16,7 @@ class Scan extends Base
 	public static function help(): array
 	{
 		return [
-			self::command.' [-|+]<ECHOAREA> [<DAYS>]',
+			self::command.' <ECHOAREA> [<DAYS>]',
 			'   Use the scan command to resend mail that you havent received yet from an',
 			'   echoarea. This is useful if you are rejoining an echoarea, and only want',
 			'   to get mail that you dont already have.',