mxf2raw: restore -i and -p shorthand options
mxf2raw: restore -i and -p shorthand options

-i == --info
-p == --ess-out

kierank/bmxlib-bmx,kierank/bmxlib-bmx,xunchangguo/BMX,stuarthicks/bmx,stuarthicks/bmx,Limecraft/ebu-bmx,xunchangguo/BMX,kierank/bmxlib-bmx,xunchangguo/BMX,Limecraft/ebu-bmx,Limecraft/ebu-bmx,stuarthicks/bmx