add note about SendReply err

transport/spdystream/spdystream.go

@@ -87,7 +87,13 @@ func (c *conn) Serve(handler pst.StreamHandler) {
 		// -- at this moment -- not the solution. Either spdystream must
 		// change, or we must throttle another way. go-peerstream handles
 		// every new stream in its own goroutine.
-		s.SendReply(http.Header{}, false)
+		err := s.SendReply(http.Header{}, false)
+		if err != nil {
+			// this _could_ error out. not sure how to handle this failure.
+			// don't return, and let the caller handle a broken stream.
+			// better than _hiding_ an error.
+			// return
+		}
 		go handler((*stream)(s))
 	})
 }