doc: added the rootdir parameter to hy_sack_create().
doc: added the rootdir parameter to hy_sack_create().

cgwalters/hawkey,ignatenkobrain/hawkey,jsilhan/hawkey,yavor-atanasov/hawkey,rholy/hawkey,yavor-atanasov/hawkey,cgwalters/hawkey,rholy/hawkey,Conan-Kudo/hawkey,rpm-software-management/hawkey,mluscon/hawkey,Conan-Kudo/hawkey,rpm-software-management/hawkey,cgwalters/hawkey,MichaelMraka/hawkey,MichaelMraka/hawkey,mizdebsk/hawkey,megaumi/hawkey,rholy/hawkey,mizdebsk/hawkey,ignatenkobrain/hawkey,jsilhan/hawkey,rpm-software-management/hawkey,cgwalters/hawkey,Conan-Kudo/hawkey,megaumi/hawkey,mluscon/hawkey,ignatenkobrain/hawkey,jsilhan/hawkey,rholy/hawkey,yavor-atanasov/hawkey,MichaelMraka/hawkey,MichaelMraka/hawkey,megaumi/hawkey,jsilhan/hawkey,mizdebsk/hawkey,mizdebsk/hawkey,yavor-atanasov/hawkey,rpm-software-management/hawkey,mluscon/hawkey,Conan-Kudo/hawkey,mluscon/hawkey,ignatenkobrain/hawkey,megaumi/hawkey