Fix for issue https://github.com/chrippa/livestreamer/issues/1478

For twitch.tv to work you need to add:

--http-header Client-ID=jzkbprff40iqj646a697cyrvl0zt2m6

Or you can add this to the configuration file:

~/.config/livestreamer/config

http-header Client-ID=jzkbprff40iqj646a697cyrvl0zt2m6