4ff5f304b9
This is the semantics as understood by `xdg-open`. Using these semantics on a non-colon-separated variable works because it acts as if it was a one element long list. This fixes an issue where it would try to exec `google-chrome-beta:google-chrome:chromium:firefox` on a system configured with these semantics in mind.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.