Comment out exe_path in generator by default
Comment out exe_path in generator by default

This typically isn't needed when used with the recommended
wkhtmltopdf-binary gems, and WickedPDF tries to guess when it isn't
specified.

xptavares/wicked_pdf,tinfoil/wicked_pdf,livetat/wicked_pdf,yuhao900914/wicked_pdf,bonekost/wicked_pdf,consolo/wicked_pdf,mileszs/wicked_pdf,brendon/wicked_pdf,reenhanced/wicked_pdf