Fix od.
Fix od.

I upgraded to the nightly build and replaced the unstable BYTES constant
with mem::size_of().

Gianbaoluo/coreutils,dennis/coreutils,efuquen/coreutils,silvio/rust-coreutils,jbcrail/coreutils,Heather/coreutils,bundai223/coreutils,tempbottle/coreutils,beni55/coreutils,uutils/coreutils,samfoo/coreutils,ebfe/coreutils,retep998/coreutils,kball/coreutils,filmor/coreutils,Gianbaoluo/coreutils,steveklabnik/coreutils,dennis/coreutils,sshling/coreutils,kevgeniy/coreutils,Shir0kamii/coreutils,beni55/coreutils,mauricio/coreutils,Shtong/coreutils,hexsel/coreutils,kball/coreutils,dbrgn/coreutils,mauricio/coreutils,dbrgn/coreutils,Shir0kamii/coreutils,kwantam/coreutils,Arcterus/coreutils,keunwoo/coreutils,Arcterus/coreutils,wimh/coreutils,Heather/coreutils,steveklabnik/coreutils,keunwoo/coreutils,Shtong/coreutils,sshling/coreutils,bundai223/coreutils,wimh/coreutils,ebfe/coreutils,filmor/coreutils,jbcrail/coreutils,samfoo/coreutils,uutils/coreutils,silvio/rust-coreutils,uutils/coreutils,efuquen/coreutils,retep998/coreutils,dbrgn/coreutils,kevgeniy/coreutils,kwantam/coreutils,hexsel/coreutils,tempbottle/coreutils