message: Improve 'unauthenticated' error message to indicate problem is named cookie
diff: @@ -177,7 +177,7 @@ func getOpenShiftUser(r *http.Request) (*User, error) {
  return nil, err
  }
  if cookie.Value == "" {
  - return nil, fmt.Errorf("unauthenticated")
  + return nil, fmt.Errorf("unauthenticated, no value for cookie %s", openshiftSessionCookieName)
  }
  return &User{
  