NAME:
    rdkeylis
 PURPOSE: (one line)
    Read a correspondence list file into arrays.
 DESCRIPTION:

 CATEGORY:
    File I/O
 CALLING SEQUENCE:
    rdkeylis, filnam, stdkeywords, flags, hdrkeywords
 INPUTS:
    filnam      : The correspondence file to be read.
 OPTIONAL INPUT PARAMETERS:

 KEYWORD PARAMETERS:

 OUTPUTS:
    stdkeywords : List of standard kewwords.
    flags       : List of flags.
    hdrkeywords : List of header keywords (and values).
 COMMON BLOCKS:

 SIDE EFFECTS:

 RESTRICTIONS:

 PROCEDURE:

 MODIFICATION HISTORY:
    Written by Doug Loucks, Lowell Observatory, November 18, 1993.
  2000/11/08, MWB, removed use of obsolete ()