Fix path truncation test: really use bytes
Fix path truncation test: really use bytes

Test is to use bytes but because of __future__.unicode_literals it used
unicode.

shanemikel/beets,randybias/beets,lengtche/beets,PierreRust/beets,Andypsamp/CODjunit,parapente/beets,swt30/beets,sadatay/beets,ttsda/beets,arabenjamin/beets,sadatay/beets,artemutin/beets,SusannaMaria/beets,xsteadfastx/beets,ttsda/beets,m-urban/beets,jmwatte/beets,beetbox/beets,mathstuf/beets,imsparsh/beets,marcuskrahl/beets,asteven/beets,shanemikel/beets,Freso/beets,untitaker/beets,asteven/beets,shamangeorge/beets,ibmibmibm/beets,swt30/beets,mried/beets,Dishwishy/beets,imsparsh/beets,gabrielaraujof/beets,gabrielaraujof/beets,marcuskrahl/beets,asteven/beets,pkess/beets,ruippeixotog/beets,untitaker/beets,madmouser1/beets,drm00/beets,kareemallen/beets,SusannaMaria/beets,jackwilsdon/beets,dfc/beets,ttsda/beets,gabrielaraujof/beets,xsteadfastx/beets,Freso/beets,xsteadfastx/beets,mried/beets,multikatt/beets,Andypsamp/CODfinalJUNIT,parapente/beets,parapente/beets,Andypsamp/CODjunit,shanemikel/beets,kelvinhammond/beets,kelvinhammond/beets,imsparsh/beets,Kraymer/beets,LordSputnik/beets,dfc/beets,ruippeixotog/beets,LordSputnik/beets,mathstuf/beets,shamangeorge/beets,tima/beets,m-urban/beets,lightwang1/beets,jcoady9/beets,lengtche/beets,jackwilsdon/beets,Dishwishy/beets,sampsyo/beets,multikatt/beets,lightwang1/beets,ruippeixotog/beets,arabenjamin/beets,pkess/beets,YetAnotherNerd/beets,mosesfistos1/beetbox,kelvinhammond/beets,sadatay/beets,pkess/beets,beetbox/beets,m-urban/beets,YetAnotherNerd/beets,dfc/beets,YetAnotherNerd/beets,ibmibmibm/beets,mathstuf/beets,Andypsamp/CODfinalJUNIT,sampsyo/beets,diego-plan9/beets,SusannaMaria/beets,lengtche/beets,artemutin/beets,lengtche/beets,randybias/beets,drm00/beets,PierreRust/beets,jcoady9/beets,marcuskrahl/beets,jmwatte/beets,shamangeorge/beets,diego-plan9/beets,lightwang1/beets,shamangeorge/beets,kareemallen/beets,diego-plan9/beets,Dishwishy/beets,Andypsamp/CODjunit,MyTunesFreeMusic/privacy-policy,SusannaMaria/beets,jmwatte/beets,LordSputnik/beets,dfc/beets,drm00/beets,ruippeixotog/beets,beetbox/beets,jcoady9/beets,LordSputnik/beets,tima/beets,jmwatte/beets,Kraymer/beets,jcoady9/beets,Andypsamp/CODfinalJUNIT,untitaker/beets,mosesfistos1/beetbox,tima/beets,moodboom/beets,swt30/beets,moodboom/beets,mathstuf/beets,sampsyo/beets,Andypsamp/CODfinalJUNIT,madmouser1/beets,ibmibmibm/beets,kareemallen/beets,arabenjamin/beets,Dishwishy/beets,Freso/beets,xsteadfastx/beets,moodboom/beets,mried/beets,asteven/beets,diego-plan9/beets,untitaker/beets,YetAnotherNerd/beets,moodboom/beets,shanemikel/beets,mosesfistos1/beetbox,sadatay/beets,mried/beets,jackwilsdon/beets,kelvinhammond/beets,tima/beets,madmouser1/beets,randybias/beets,pkess/beets,PierreRust/beets,m-urban/beets,multikatt/beets,jackwilsdon/beets,PierreRust/beets,Kraymer/beets,Andypsamp/CODjunit,kareemallen/beets,Andypsamp/CODfinalJUNIT,imsparsh/beets,beetbox/beets,MyTunesFreeMusic/privacy-policy,artemutin/beets,drm00/beets,gabrielaraujof/beets,arabenjamin/beets,parapente/beets,madmouser1/beets,lightwang1/beets,artemutin/beets,MyTunesFreeMusic/privacy-policy,Kraymer/beets,sampsyo/beets,ibmibmibm/beets,multikatt/beets,MyTunesFreeMusic/privacy-policy,randybias/beets,swt30/beets,marcuskrahl/beets,Freso/beets,mosesfistos1/beetbox,Andypsamp/CODjunit,ttsda/beets