Maher4Ever/guard — comment on commit 1d0d1eb64f8428e3c920f064e10f30f838756626
File:  line 0
By netzpirat:

I think `hash` is perfect, since we're not interested in the path, we're interested only to know if it exit in the path. I've tested this on a Windows 7 VM and my OS X box and it worked fine in both environments (returns true on OS X and false on Windows).