Update `rclone_config` path to new default value
Update `rclone_config` path to new default value

rclone recently added support to respect XDG base directories, which
means its default config location is now
`$HOME/.config/rclone/rclone.conf` or
`$XDG_CONFIG_HOME/rclone/rclone.conf` if the `$XDG_CONFIG_HOME`
environment variable is set.

bardisty/ytdlrc