make dir name consistent
make dir name consistent

might affect some case-sensitive file systems

yudachi/poi,poooi/poi,gnattu/poi,syncsyncsynchalt/poi,gnattu/poi,poooi/poi,PHELiOX/poi,yudachi/poi,poooi/poi,syncsyncsynchalt/poi,poooi/poi,yudachi/poi,syncsyncsynchalt/poi,PHELiOX/poi,syncsyncsynchalt/poi