Fix comment

Signed-off-by: Steve Peters <[email protected]>

log/include/ignition/transport/log/Recorder.hh

@@ -73,7 +73,7 @@ namespace ignition
 
  /// \brief Begin recording topics
  /// \param[in] _file path to log file
- /// \return NO_ERROR if recording was successfully started. If the file
+ /// \return SUCCESS if recording was successfully started. If the file
  /// already existed, this will return FAILED_TO_OPEN.
  public: RecorderError Start(const std::string &_file);
 
@@ -86,7 +86,7 @@ namespace ignition
  /// \param[in] _topic The exact topic name
  /// \note This method attempts to subscribe to the topic immediately.
  /// The subscription will be kept until this is destructed.
- /// \return NO_ERROR if the subscription was created.
+ /// \return SUCCESS if the subscription was created.
  public: RecorderError AddTopic(const std::string &_topic);
 
  /// \brief Add a topic to be recorded (regex match)