Arvados

I believe the below should do the trick, but when I last tried this, it broke the tests.

diff --git a/services/keepproxy/keepproxy.go b/services/keepproxy/keepproxy.go
index de4ccaf..e715eea 100644
--- a/services/keepproxy/keepproxy.go
+++ b/services/keepproxy/keepproxy.go
@@ -339,7 +339,7 @@ func (this PutBlockHandler) ServeHTTP(resp http.ResponseWriter, req *http.Reques

        log.Printf("%s: %s %s Content-Length %v", GetRemoteAddress(req), req.Method, hash, contentLength)

-       if contentLength < 1 {
+       if contentLength < 0 {
                http.Error(resp, "Must include Content-Length header", http.StatusLengthRequired)
                return
        }