lucky dev Ctrl+C does not wait until the process manager exits

[ZimbiX]

When I run lucky dev and at any point press Ctrl+C to stop it, sometimes the output is unclean, still logging process exits after my next terminal prompt has shown. This seems to be due to lucky dev not waiting for the process manager to exit when it receives the SIGINT signal.

It's most evident when using Foreman, since it's a bit slower to react to Ctrl+C than Overmind. Without a way to select the process manager in use, I've been forcing use of foreman by disabling my binaries which have higher priority:

sudo mv /usr/bin/overmind /usr/bin/overmindx
sudo mv /usr/local/bin/heroku /usr/local/bin/herokux

Example:

It looks like a fix would involve catching the interrupt before running the process manager

Signal::INT.trap do
  puts "Int"
end

Process.run("foreman", ["start", "-f", "Procfile.dev"], output: STDOUT, error: STDERR)

which works:

I reckon this could be added here:

lucky_cli/src/lucky_cli/process_runner.cr

Lines 33 to 38 in 1312680

	private def run(process, args)
	process.run command, args,
	output: STDOUT,
	error: STDERR,
	shell: true
	end

I'll start working on a PR.