add support for archlinux
add support for archlinux

archlinux has ca certificates in different place than Fedora

PeterMosmans/cipherscan,MikeDawg/cipherscan,PeterMosmans/cipherscan,jvehent/cipherscan,MikeDawg/cipherscan,PeterMosmans/cipherscan,MikeDawg/cipherscan,jvehent/cipherscan,jvehent/cipherscan