address CR comment re interface in cmds http handler

#1529 (comment)

License: MIT
Signed-off-by: Juan Batiz-Benet <[email protected]>

Author: jbenet

commands/http/handler.go

@@ -151,7 +151,7 @@ func (i internalHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 
 	// now handle responding to the client properly
-	sendResponse(w, r, req, res)
+	sendResponse(w, r, res, req)
 }
 
 func guessMimeType(res cmds.Response) (string, error) {
@@ -175,7 +175,7 @@ func guessMimeType(res cmds.Response) (string, error) {
 	return mimeTypes[enc], nil
 }
 
-func sendResponse(w http.ResponseWriter, r *http.Request, req cmds.Request, res cmds.Response) {
+func sendResponse(w http.ResponseWriter, r *http.Request, res cmds.Response, req cmds.Request) {
 	mime, err := guessMimeType(res)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)