Teach elixir.bat ELIXIR_CLI_DRY_RUN (#11916)
Teach elixir.bat ELIXIR_CLI_DRY_RUN (#11916)

The *nix equivalent shell script echoes the full erl.exe path and args to stdout when the environment variable ELIXIR_CLI_DRY_RUN is set instead of executing it.

This patch adds this behaviour to the Windows bat file for consistency.
michalmuskala/elixir,elixir-lang/elixir