Using the suffix option breaks having multiple widths

[notasausage]

I just started using this in my gulp process of creating HTML emails in order to send them to InVIsion for review by placing screenshots in a local folder that is pushed to the web app using the InVision Sync menubar app. In order for InVision to see these screenshots as hiDPI images, I need to add the @2x suffix on the filename.

The problem is that adding the suffix option to the gulp task overrides the width option's ability to create multiple screenshots of the same HTML in different widths.

if ( opts.suffix ) {
    dest = filename.replace('.html', '') + '-' + opts.suffix + '.' + opts.type;
} else if ( opts.zoom > 1 ) {
    dest = filename.replace('.html', '') + '-' + w + '-zoom-' + opts.zoom + '.' + opts.type;
} else {
    dest = filename.replace('.html', '') + '-' + w + '.' + opts.type;
}

I'd suggest changing the suffix created when zoom is specified to use the more standardized @2x or @3x, etc. and mention in the documentation that the suffix option cannot be used at the same time as multiple width declarations.