cp: fix argument parsing
cp: fix argument parsing

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