List pacman as a supported package manager (#1938)
List pacman as a supported package manager (#1938)

Update warning message containing supported package managers to also show pacman.
lasote/conan,tivek/conan,luckielordie/conan,memsharded/conan,birsoyo/conan,tivek/conan,birsoyo/conan,memsharded/conan,conan-io/conan,conan-io/conan,lasote/conan,conan-io/conan,memsharded/conan,luckielordie/conan,memsharded/conan