Added support for rar files without comments on Unix platform
Added support for rar files without comments on Unix platform

Alwnikrotikz/py-unrar2,Alwnikrotikz/py-unrar2,yk4ever/py-unrar2,yk4ever/py-unrar2,PiRSquared17/py-unrar2,PiRSquared17/py-unrar2,Alwnikrotikz/py-unrar2,PiRSquared17/py-unrar2,yk4ever/py-unrar2