cli_test: skip test that relies on chmod() when under fakeroot
cli_test: skip test that relies on chmod() when under fakeroot

Debian packages are built using fakeroot(1), which is a wrapper that lets
subprocesses think they are being run as root even though they are not.
fakeroot will wrap chmod() and it won't to what you expect to.

kimshrier/elixir,pedrosnk/elixir,michalmuskala/elixir,lexmag/elixir,gfvcastro/elixir,kelvinst/elixir,lexmag/elixir,elixir-lang/elixir,ggcampinho/elixir,antipax/elixir,pedrosnk/elixir,joshprice/elixir,kimshrier/elixir,antipax/elixir,beedub/elixir,ggcampinho/elixir,kelvinst/elixir,gfvcastro/elixir,beedub/elixir