Add some syntax sugar

[evenstensberg]

This PR will add an comment with an discription of what spawn do, as
well as an removed console.log in order to make use of string template
in node.

Not sure if this is needed, but why not 💙

[evenstensberg]

This is greatly written by the way. Thumbs up to Christopher, Dan and the rest working on this.

[gaearon]

Hi, thanks! I don’t think we’ll take this.

We use spawn pretty extensively in the codebase so it doesn’t make sense to me to document what it does in just one place. One would need to understand spawn anyway to contribute to this project, so I feel like documenting this is a bit out of scope.

Similarly, we would rather avoid taking purely stylistic changes. They clutter the changelog, and this code changes fast anyway. Also, I’m not sure I’m seeing the benefit of proposed over existing form.

[evenstensberg]

No problem, I get it :) You'll have one console line instead of two, which makes a bit more sense, as you are making the code a bit more efficient in that matter. However, the changes to not have a very big perf gain, so I understand.

As with the commenting, I like that the .sh has been fairly commented, so people that want to contribute know how the bash script works. It was a nice move. It makes it easier to understand the code if you see something you've not encountered before, as well as getting knowledge of how it works, before eventually making a PR that's related to source code.

Also, if it's not a too big of a deal,mind answering me on Twitter, so I can ask a few questions about how you're making a temp directory.