sort: fix flag for human numeric sort
sort: fix flag for human numeric sort

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