Ensure createPreprocessor throws file err if given

[keithamus]

Never swallow errors!

[doodlemoonch]

+1

[maksimr]

@keithamus Thanks!

Can you fix 'jshint' error?

if (err) {
 throw err;
}

[keithamus]

Done hopefully - I'm only using the github editor, not my local editor so fingers crossed 😉

[maksimr]

Awesome!!
It remains only to change the commit message follow convention.
In your case something like:

fix(preprocessor): Throw error if can't open file (example)

Thank you for your patience :)

[keithamus]

@maksimr Done and done.

[maksimr]

LGTM

[keithamus]

I can has merge?

[aymericbeaumet]

LGTM