[bug #53784] [PATCH] tmac-files: Separate legal matter from other text in the same ".ig"-block

[G. Branden Robinson]

Update of bug #53784 (project groff):

                Severity:              3 - Normal => 1 - Wish               
                  Status:                    None => Invalid                
             Assigned to:                    None => gbranden               
             Open/Closed:                    Open => Closed                 
         Planned Release:                    None => 1.22.4                 

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Follow-up Comment #1:

I believe this bug is invalid but it did motivate me to make the stripper
script more careful.

See commit c4d82acf4de9f1d6e19ef824607f3fd45f0dcf33.


commit c4d82acf4de9f1d6e19ef824607f3fd45f0dcf33 (HEAD -> master,
origin/master, origin/HEAD)
Author: G. Branden Robinson <address@hidden>
Date:   Mon Nov 5 07:00:46 2018 -0500

    tmac/strip.sed: Operate only if given permission.
    
            * tmac/strip.sed: Do nothing whatsoever to any input file that
            lacks a line matching "%beginstrip%".  This implements a
            contract between the macro file writer and the stripper script
            (roff input is not parseable with crude weaponry like regular
            expressions).  In practice, most of the changes performed by the
            script were already in a block enforcing this.  My changes:
              + Stop unconditionally inserting a roff comment noting the
                reader of stripping at line 2.  Instead, replace the line
                matching "%beginstrip%" with this comment if and only if it
                is present.
              + Stop deleting lines containing only the empty request if
                they occur before "%beginstrip%".
              + Tweak the wording of the roff comment.
              + Remove comment within the sed script; see
            <https://lists.gnu.org/archive/html/groff/2017-11/msg00057.html>
                and the sed section of "Limitations of Usual Tools" in the
                GNU Autoconf Manual.
    
            * tmac/e.tmac-u: Add a comment line to visually separate the end
            of the license statement from the comment emplaced by strip.sed.
            This is also consistent with the mdoc macro files.
    
            Invalidates <https://savannah.gnu.org/bugs/index.php?53784>.
    
    Signed-off-by: G. Branden Robinson <address@hidden>


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