give warnings when using an invalid arch/platform combination

[seiyria]

Please describe your issue: I accidentally was using --arch=ia32 and --platform=darwin and was getting absolutely no output from electron-packager. Turns out I have to use --arch=x64.

Console output when you run electron-packager with the environment variable DEBUG=electron-packager. Please include the stack trace if one exists.

posys seiyria$ ./node_modules/.bin/electron-packager . --platform=darwin --arch=ia32
posys seiyria$ ./node_modules/.bin/electron-packager . --platform=darwin --arch=x64
Packaging app for platform darwin x64 using electron v1.4.14
Wrote new app to /Users/seiyria/GitHub/posys/Posys-darwin-x64

What command line arguments are you passing? Alternatively, if you are using the API, what
parameters are you passing to the packager() function?

--arch=ia32 --platform=darwin

Please provide either a failing minimal testcase (with a link to the code) or detailed steps to
reproduce your problem. Using electron-quick-start
is a good starting point.

It should work on any electron-packager usage, but the project I'm using it on is here.

[malept]

Thanks for the suggestion! I'd rather give warnings than errors.

[seiyria]

A warning would be fantastic too. Anything to let me know that I'm doing something dumb is better than silence!