/REQUIRE=filespec
       /NOREQUIRE (default)

    Allows you to change or delete the heading on the first page of
    a table of contents. The default heading is the word CONTENTS
    centered on the page and followed by one blank line. You can
    either substitute another word as a heading, or have no heading.

    To change the heading, do one of the following:

    o  If you do not want any heading, specify a null file as the
       file specification for /REQUIRE.

       $ RUNOFF/CONTENTS/REQUIRE=nl:

    o  If you want to use a different heading, create or edit a
       file that specifies the heading that you want. Use the file
       that you create as the file specification for the /REQUIRE
       qualifier.

    When you use the /REQUIRE qualifier, the default heading for the
    first page of the contents is not generated. The file that you
    are "requiring" must provide the heading. The file can contain
    both DSR commands that change the format of the first page and
    the text that you want to appear at the top of the page. Or the
    file can contain only DSR commands to format the first page of
    the contents. For example, you can put the command .FIGURE 10
    in the file. This command generates 10 blank lines at the top of
    the first page of the table of contents. You can use these blank
    lines for later pasteup.