def get_end( line )
      retval = nil
      m = /^\s*;\s*end_part/.match( line )
      if m
        retval = true
      end
      return retval
    end
def get_end( line )
      retval = nil
      m = /^\s*;\s*end_part/.match( line )
      if m
        retval = true
      end
      return retval
    end
Determines if the the line is an end_parts comment.
 Return true otherwise nil