Fix operator keygen test to check for 32 bytes

command/operator_keygen_test.go

@@ -22,7 +22,7 @@ func TestKeygenCommand(t *testing.T) {
 		t.Fatalf("err: %s", err)
 	}
 
-	if len(result) != 16 {
+	if len(result) != 32 {
 		t.Fatalf("bad: %#v", result)
 	}
 }