message: don't panic when sip002 account is invalid
diff: @@ -327,7 +327,7 @@ impl ServerConfig {
  let mut sp2 = account.splitn(2, ':');
  let (method, pwd) = match (sp2.next(), sp2.next()) {
  (Some(m), Some(p)) => (m, p),
  - _ => panic!("Malformed input"),
  + _ => return Err(UrlParseError::InvalidUserInfo)
  };
  let addr = match addr.parse::<ServerAddr>() {
  