Building the pfe documentation as part of install-doc files with a parse error by xmlto while making the HTML manual.

[tkurtbond]

Here's the log:

make install-doc
(cd doc && /Applications/Xcode.app/Contents/Developer/usr/bin/make install-doc)
test ! -d pfe-manual  || mkdir pfe-manual; rm pfe-manual/*
rm: cannot remove 'pfe-manual/*': No such file or directory
make[1]: [pfe-manual/index.html] Error 1 (ignored)
xmlto  --skip-validation -o pfe-manual html pfe-manual.docbook
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook:2583: parser error : EntityRef: expecting ';'
  <literal>EMPTY\$\&lt\;/code>.  "string-variable""
                      ^
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook:2584: parser error : Opening and ending tag mismatch: literal line 2583 and para
</para>
       ^
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook:2938: parser error : Opening and ending tag mismatch: para line 2580 and refsect1
</refsect1>
           ^
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook:2939: parser error : Opening and ending tag mismatch: refsect1 line 2409 and refentry
</refentry>
           ^
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook:7212: parser error : EntityRef: expecting ';'
<para>  takes the execution-token from <literal>(\$\&lt\;/code> and compiles
                                                       ^
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook:7214: parser error : Opening and ending tag mismatch: literal line 7212 and para
</para>
       ^
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook:7432: parser error : Opening and ending tag mismatch: para line 7212 and refsect1
</refsect1>
           ^
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook:7433: parser error : Opening and ending tag mismatch: refsect1 line 7198 and refentry
</refentry>
           ^
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook:7663: parser error : Opening and ending tag mismatch: refentry line 7150 and reference
</reference>
            ^
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook:7665: parser error : Premature end of data in tag refentry line 2309

^
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook:7665: parser error : Premature end of data in tag reference line 3

^
/usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-manual.docbook:41: element include: XInclude error : could not load /usr/local/sw/src/forth/pfe/Darwin_21.6.0_x86_64.d/doc/pfe-wordsets.docbook, and no fallback was found
make[1]: *** [pfe-manual/index.html] Error 6
make: *** [install-doc] Error 2