Use $RELEASE_NODE as the base for --remsh/--rpc (#8998)
Use $RELEASE_NODE as the base for --remsh/--rpc (#8998)

This guarantees that custom hostnames and similar
propagate properly.
michalmuskala/elixir,ggcampinho/elixir,elixir-lang/elixir,kimshrier/elixir,pedrosnk/elixir,ggcampinho/elixir,kelvinst/elixir,kimshrier/elixir,joshprice/elixir,kelvinst/elixir,pedrosnk/elixir,lexmag/elixir,lexmag/elixir