sort: refactor settings into dedicated struct
sort: refactor settings into dedicated struct

kevgeniy/coreutils,tempbottle/coreutils,tempbottle/coreutils,uutils/coreutils,uutils/coreutils,keunwoo/coreutils,kwantam/coreutils,Arcterus/coreutils,wimh/coreutils,Heather/coreutils,Arcterus/coreutils,jbcrail/coreutils,ebfe/coreutils,keunwoo/coreutils,uutils/coreutils,Heather/coreutils,kevgeniy/coreutils,wimh/coreutils,kwantam/coreutils,ebfe/coreutils,jbcrail/coreutils