code: public void printUsage (@Nonnull final PrintWriter aPW, final int nWidth, final String sCmdLineSyntax)
    {
      final int nArgPos = sCmdLineSyntax.indexOf (' ') + 1;
  
      printWrapped (aPW, nWidth, getSyntaxPrefix ().length () + nArgPos, getSyntaxPrefix () + sCmdLineSyntax);
    }
docs: Print the sCmdLineSyntax to the specified writer, using the specified
  width.
  
  @param aPW
  The printWriter to write the help to
  @param nWidth
  The number of characters per line for the usage statement.
  @param sCmdLineSyntax
  The usage statement.