godep save fails on windows with "chmod not supported by windows error"

[alexbrand]

Expected behavior

Godep should copy the dependencies into the Godeps file and vendor folder

Actual behavior

Error is shown saying that chmod is not supported by Windows. Sample:
godep: chmod vendor\github.com\square\go-jose\json\decode.go: not supported by windows

Steps to reproduce behavior

Run godep save ./... on a new project that has dependencies.

godep version output

godep v72 (windows/amd64/go1.6.1)

go version output

go version go1.6.1 windows/amd64