upload respect master default replication setting

go/weed/upload.go

@@ -25,7 +25,7 @@ func init() {
 	server = cmdUpload.Flag.String("server", "localhost:9333", "weedfs master location")
 	uploadDir = cmdUpload.Flag.String("dir", "", "Upload the whole folder recursively if specified.")
 	include = cmdUpload.Flag.String("include", "", "pattens of files to upload, e.g., *.pdf, *.html, ab?d.txt, works together with -dir")
-	uploadReplication = cmdUpload.Flag.String("replication", "000", "replication type(000,001,010,100,110,200)")
+	uploadReplication = cmdUpload.Flag.String("replication", "", "replication type(000,001,010,100,110,200)")
 }
 
 var cmdUpload = &Command{
@@ -49,7 +49,9 @@ type AssignResult struct {
 func assign(count int) (*AssignResult, error) {
 	values := make(url.Values)
 	values.Add("count", strconv.Itoa(count))
+	if *uploadReplication != "" {
 		values.Add("replication", *uploadReplication)
+	}
 	jsonBlob, err := util.Post("http://"+*server+"/dir/assign", values)
 	debug("assign result :", string(jsonBlob))
 	if err != nil {