[PlayerStage-Gazebo] Doc/Code mismatch in gazebo.h

[Willi R. <w.r...@gm...>]

Hi,

In class Client of gazebo.h (svn) we have a small error: Shall Wait return 
something or not?

  /// \brief Wait for new data to be posted (blocking mode).
  /// \returns Returns 0 on success, -1 on error.
  public: void Wait();

Merry christmas,
wr