Close http.Body reader when needed
Close http.Body reader when needed

If we don't do that, all the goroutines opened by the Body Reader are never closed, causing a 'fatal: morestack on g0' error.

mcuadros/go-git,src-d/go-git,mcuadros/go-git,go-git/go-git,go-git/go-git,src-d/go-git