This enables compatibility with users who also disable aliases
The utillinux alias was added in 2020[1], which is older than the previous
Nixpkgs pin, which means we can safely switch to the non-aliased version.
1: 3896a0c0e2/pkgs/top-level/aliases.nix (L1967)
Silences warnings like "getExe: Package
"copyparty-1.16.15" does not have the
meta.mainProgram attribute. We'll assume that the
main program has the same name for now, but this
behavior is deprecated, because it leads to
surprising errors when the assumption does not
hold. If the package has a main program, please
set `meta.mainProgram` in its definition to make
this warning go away. Otherwise, if the package
does not have a main program, or if you don't
control its definition, use getExe' to specify
the name to the program, such as lib.getExe' foo
"bar"."
