                  read_beams(beam_paths)
         tuples = if strip_beam?, do: strip_beams(tuples), else: tuples
 
-        case :zip.create 'mem', tuples, [:memory] do
+        case :zip.create('mem', tuples, [:memory]) do
           {:ok, {'mem', zip}} ->
-            shebang  = escript_opts[:shebang] || "#! /usr/bin/env escript\n"
-            comment  = build_comment(escript_opts[:comment])
+            shebang = escript_opts[:shebang] || "#! /usr/bin/env escript\n"
+            comment = build_comment(escript_opts[:comment])
             emu_args = build_emu_args(escript_opts[:emu_args], escript_mod)
 
             script = IO.iodata_to_binary([shebang, comment, emu_args, zip])

          ":main_module could not be loaded"

      force || Mix.Utils.stale?(files, [filename]) ->
        beam_paths =
          [files, deps_files(), core_files(escript_opts, language)]
          |> Stream.concat

      Mix.raise "Building escripts for umbrella projects is unsupported"
    end

    script_name = Mix.Local.name_for(:escript, project)
    filename = escript_opts[:path] || script_name
    main = escript_opts[:main_module]
    files = project_files()

    cond do
      !script_name ->
