No new line break for some at-sign@ in Javadoc comment #1249

// AUTO-GENERATED DOCUMENTATION AND METHOD.
/**
* <p> Sample code:
* <pre>{@code
* // This snippet has been automatically generated and should be regarded as a code template only.
* try (EchoServiceClient echoServiceClient =
*     EchoServiceClient.create()) {
*   EchoResponse response =
*       echoServiceClient.chat();
* }
* }</pre>
* @param request The request object containing all of the parameters for the API call.
* @throws com.google.api.gax.rpc.ApiException if the remote call fails
* @InternalApi This method is internal used only. Please do not use directly.
*/

// AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Sample code:
   *
   * <pre>{@code
   * // This snippet has been automatically generated and should be regarded as a code template only.
   * try (EchoServiceClient echoServiceClient =
   *     EchoServiceClient.create()) {
   *   EchoResponse response =
   *       echoServiceClient.chat();
   * }
   * }</pre>
   *
   * @param request The request object containing all of the parameters for the API call.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails @InternalApi This method
   *     is internal used only. Please do not use directly.
   */