why the makefile and src directory? Why not put the source in the root directory, so that go get github.com/jgrahamc/httpdiff would just work? The makefile doesn't even do anything useful, and just makes it so that poor windows folks can't build your code for no good reason.
Yes, you have to do the archaic `go get github.com/jgrahamc/httpdiff/src/httpdiff`. Truly a travesty. While the makefile allows you to avoid the whole GOPATH nonsense, which gets a plus from me.