fix file ignoring when recursing in sorted_walk (#245)
fix file ignoring when recursing in sorted_walk (#245)

Andypsamp/CODfinalJUNIT,marcuskrahl/beets,tima/beets,dfc/beets,YetAnotherNerd/beets,parapente/beets,parapente/beets,LordSputnik/beets,m-urban/beets,dfc/beets,krig/beets,dfc/beets,drm00/beets,m-urban/beets,marcuskrahl/beets,ruippeixotog/beets,ibmibmibm/beets,parapente/beets,arabenjamin/beets,Andypsamp/CODjunit,Andypsamp/CODjunit,lengtche/beets,kelvinhammond/beets,bj-yinyan/beets,Andypsamp/CODfinalJUNIT,diego-plan9/beets,Andypsamp/CODfinalJUNIT,MyTunesFreeMusic/privacy-policy,kareemallen/beets,asteven/beets,Wen777/beets,kareemallen/beets,sadatay/beets,untitaker/beets,YetAnotherNerd/beets,MyTunesFreeMusic/privacy-policy,mclearc/beets,mosesfistos1/beetbox,jbaiter/beets,parapente/beets,artemutin/beets,asteven/beets,m-urban/beets,Freso/beets,pkess/beets,mclearc/beets,MyTunesFreeMusic/privacy-policy,mosesfistos1/beetbox,gabrielaraujof/beets,Andypsamp/CODjunit,LordSputnik/beets,artemutin/beets,untitaker/beets,lengtche/beets,artemutin/beets,sadatay/beets,mathstuf/beets,sampsyo/beets,shamangeorge/beets,kareemallen/beets,beetbox/beets,kareemallen/beets,Andypsamp/CODfinalJUNIT,shanemikel/beets,ruippeixotog/beets,multikatt/beets,andremiller/beets,PierreRust/beets,imsparsh/beets,SusannaMaria/beets,imsparsh/beets,madmouser1/beets,arabenjamin/beets,randybias/beets,shanemikel/beets,arabenjamin/beets,krig/beets,moodboom/beets,multikatt/beets,ngokevin/beets,diego-plan9/beets,swt30/beets,Kraymer/beets,jcoady9/beets,ttsda/beets,madmouser1/beets,bj-yinyan/beets,Freso/beets,xsteadfastx/beets,swt30/beets,mclearc/beets,ttsda/beets,drm00/beets,jackwilsdon/beets,shanemikel/beets,pkess/beets,Andypsamp/CODfinalJUNIT,drm00/beets,imsparsh/beets,SusannaMaria/beets,untitaker/beets,m-urban/beets,diego-plan9/beets,mathstuf/beets,asteven/beets,madmouser1/beets,mried/beets,randybias/beets,andremiller/beets,jackwilsdon/beets,pkess/beets,Dishwishy/beets,mosesfistos1/beetbox,xsteadfastx/beets,Freso/beets,mried/beets,ttsda/beets,jmwatte/beets,LordSputnik/beets,Dishwishy/beets,PierreRust/beets,kelvinhammond/beets,lightwang1/beets,swt30/beets,beetbox/beets,moodboom/beets,drm00/beets,xsteadfastx/beets,Andypsamp/CODjunit,tima/beets,shamangeorge/beets,jbaiter/beets,bj-yinyan/beets,asteven/beets,aspidites/beets,moodboom/beets,gabrielaraujof/beets,untitaker/beets,pdf/beets,Kraymer/beets,lightwang1/beets,ngokevin/beets,jackwilsdon/beets,mathstuf/beets,jcoady9/beets,tima/beets,krig/beets,PierreRust/beets,kelvinhammond/beets,Dishwishy/beets,ttsda/beets,shamangeorge/beets,arabenjamin/beets,tima/beets,gabrielaraujof/beets,pdf/beets,multikatt/beets,sadatay/beets,ibmibmibm/beets,Dishwishy/beets,bj-yinyan/beets,mosesfistos1/beetbox,swt30/beets,beetbox/beets,marcuskrahl/beets,jcoady9/beets,mried/beets,sadatay/beets,shanemikel/beets,mried/beets,lengtche/beets,kelvinhammond/beets,artemutin/beets,randybias/beets,Andypsamp/CODjunit,sampsyo/beets,Wen777/beets,sampsyo/beets,jmwatte/beets,ruippeixotog/beets,MyTunesFreeMusic/privacy-policy,lightwang1/beets,mathstuf/beets,diego-plan9/beets,shamangeorge/beets,ibmibmibm/beets,jmwatte/beets,marcuskrahl/beets,Freso/beets,jayme-github/beets,randybias/beets,multikatt/beets,beetbox/beets,lengtche/beets,YetAnotherNerd/beets,andremiller/beets,YetAnotherNerd/beets,ibmibmibm/beets,dfc/beets,SusannaMaria/beets,gabrielaraujof/beets,aspidites/beets,LordSputnik/beets,imsparsh/beets,moodboom/beets,SusannaMaria/beets,lightwang1/beets,Wen777/beets,ruippeixotog/beets,xsteadfastx/beets,jmwatte/beets,PierreRust/beets,sampsyo/beets,jayme-github/beets,madmouser1/beets,Kraymer/beets,jackwilsdon/beets,jcoady9/beets,Kraymer/beets,pkess/beets