Revert "use sprintf"
Revert "use sprintf"

This reverts commit af1ad01b9952c4b5765ab6a1e910d2b5dd681167.

chjj/blessed,yaronn/blessed,zBMNForks/blessed,bulkan/blessed,umi/blessed,rstr74/blessed,umi/blessed,piranna/blessed,anko/blessed,eush77/blessed,chjj/blessed,mcanthony/blessed,zBMNForks/blessed,gdseller/blessed,mcanthony/blessed,piranna/blessed,rosshinkley/blessed,gdseller/blessed,bulkan/blessed,anko/blessed,yaronn/blessed,rstr74/blessed,eush77/blessed,rosshinkley/blessed,dbkaplun/blessed,dbkaplun/blessed