Execa fails to handle numeric error codes in Node 8

[Lalem001]

Per node's docs, util.getSystemErrorName was added in Node 9.7.0.

util.getSystemErrorName appears in Execa's lib/error.js#L11.

I see the following error in Node 8.9.4,

TypeError {
  message: 'util.getSystemErrorName is not a function',
}

[sindresorhus]

You're on an ancient Node.js 8 version. You have to upgrade. There have been a lot of feature and security bug fixes since then.

#319

[Lalem001]

I wholeheartedly agree. Your opinion might just be enough to get my company to upgrade 😆

Thanks for #319

[ehmicky]

@Lalem001 util.getSystemErrorName() was backported to Node 8.12.0. I hope you are able to upgrade to that Node version in your company.

We just updated the engines field (as you pointed out) to make our supported Node versions clearer. Thanks for checking out the new release.