Fix syntax errors

[TheKrafter]

here is the console output showing syntax errors:

        when 1:
/home/krafter/.config/pianobar/pianobar-lastfm.rb:139: syntax error, unexpected `when', expecting `end'
        when 2:
/home/krafter/.config/pianobar/pianobar-lastfm.rb:189: syntax error, unexpected `end', expecting end-of-input
(i) Get stations... Ok.
/home/krafter/.config/pianobar/pianobar-lastfm.rb:137: syntax error, unexpected ':', expecting `then' or ',' or ';' or '\n'
        when 1:
/home/krafter/.config/pianobar/pianobar-lastfm.rb:139: syntax error, unexpected `when', expecting `end'
        when 2:
/home/krafter/.config/pianobar/pianobar-lastfm.rb:189: syntax error, unexpected `end', expecting end-of-input
        when 1:
/home/krafter/.config/pianobar/pianobar-lastfm.rb:139: syntax error, unexpected `when', expecting `end'
        when 2:
/home/krafter/.config/pianobar/pianobar-lastfm.rb:189: syntax error, unexpected `end', expecting end-of-input
(i) Get stations... Ok.
/home/krafter/.config/pianobar/pianobar-lastfm.rb:137: syntax error, unexpected ':', expecting `then' or ',' or ';' or '\n'
        when 1:
/home/krafter/.config/pianobar/pianobar-lastfm.rb:139: syntax error, unexpected `when', expecting `end'
        when 2:
/home/krafter/.config/pianobar/pianobar-lastfm.rb:189: syntax error, unexpected `end', expecting end-of-input