fmt: update use of *T to *const T
fmt: update use of *T to *const T

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