In sox_format_supports_encoding, allow path to be null if filetype is set.
In sox_format_supports_encoding, allow path to be null if filetype is set.

uklauer/sox,pcqpcq/sox,Motiejus/sox,cbagwell/sox,Distrotech/sox,uklauer/sox,MageSlayer/sox,Distrotech/sox,MageSlayer/sox,jacksonh/sox,MageSlayer/sox,mhartzel/sox_personal_fork,davel/sox,pcqpcq/sox,pcqpcq/sox,CaptainHayashi/sox,Motiejus/sox,davel/sox,mhartzel/sox_personal_fork,cbagwell/sox,Motiejus/sox,pcqpcq/sox,uklauer/sox,Distrotech/sox,CaptainHayashi/sox,davel/sox,Distrotech/sox,cbagwell/sox,mhartzel/sox_personal_fork,jacksonh/sox,jacksonh/sox,cbagwell/sox,uklauer/sox,jacksonh/sox,CaptainHayashi/sox,mhartzel/sox_personal_fork,MageSlayer/sox,davel/sox,MageSlayer/sox,CaptainHayashi/sox,Motiejus/sox