misc/makerelease: a couple of small fixes

Change-Id: Iec19d6152b95ba67daac366b32d42f69e1dba9a4
Reviewed-on: https://go-review.googlesource.com/2951Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

misc/makerelease/makerelease.go

@@ -141,10 +141,6 @@ func main() {
 		os.Exit(2)
 	}
 	flag.Parse()
-	if *tag == "" {
-		fmt.Fprintln(os.Stderr, "you must specify a -tag")
-		os.Exit(2)
-	}
 	if flag.NArg() == 0 {
 		flag.Usage()
 	}
@@ -210,6 +206,10 @@ func main() {
 				}
 			}
 		}
+		if *tag == "" {
+			fmt.Fprintln(os.Stderr, "you must specify a -tag")
+			os.Exit(2)
+		}
 		if err := b.Do(); err != nil {
 			log.Printf("%s: %v", targ, err)
 			ok = false
@@ -755,6 +755,7 @@ func setupOAuthClient() error {
 		ClientSecret: "8YLFgOhXIELWbO-NtF3iqIQz",
 		Endpoint:     google.Endpoint,
 		Scopes:       []string{storage.DevstorageRead_writeScope},
+		RedirectURL:  "oob",
 	}
 	url := config.AuthCodeURL("junk")
 	fmt.Println("Visit the following URL, obtain an authentication" +