endofproofwd not working in TeX Live 2020

[Scott Pakin]

endofproofwd is rather broken in TeX Live 2020.  Here's a minimal
reproducer:

    \documentclass{article}
    \usepackage{endofproofwd}
    \begin{document}
    The end. \wasserdicht
    \end{document}

and here's the result:

    ! LaTeX Error: File `comon/endofproofwd.pdf_tex' not found.

endofproofwd.sty imports comon/endofproofwd.pdf_tex (yes, with a
hard-wired subdirectory), which does an \includegraphics of
endofproofwd.pdf.  TeX Live mistakenly installs endofproofwd.pdf in the
documentation directory (perhaps because CTAN mistakenly links to that
file as "Package documentation"?), which also implies that pdftex, etc.
won't be able to find it.

-- Scott