/usr/share/perl5/MKDoc/ is in libmkdoc-xml-perl 0.75-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/MKDoc/XML/
/usr/share/perl5/MKDoc/XML.pm
/usr/share/perl5/MKDoc/XML/Decode/
/usr/share/perl5/MKDoc/XML/Decode.pm
/usr/share/perl5/MKDoc/XML/Decode/Numeric.pm
/usr/share/perl5/MKDoc/XML/Decode/XHTML.pm
/usr/share/perl5/MKDoc/XML/Decode/XMLBase.pm
/usr/share/perl5/MKDoc/XML/Dumper.pm
/usr/share/perl5/MKDoc/XML/Encode.pm
/usr/share/perl5/MKDoc/XML/Stripper/
/usr/share/perl5/MKDoc/XML/Stripper.pm
/usr/share/perl5/MKDoc/XML/Stripper/mkdoc16.txt
/usr/share/perl5/MKDoc/XML/Stripper/xhtml10frameset.txt
/usr/share/perl5/MKDoc/XML/Stripper/xhtml10strict.txt
/usr/share/perl5/MKDoc/XML/Stripper/xhtml10transitional.txt
/usr/share/perl5/MKDoc/XML/Tagger/
/usr/share/perl5/MKDoc/XML/Tagger.pm
/usr/share/perl5/MKDoc/XML/Tagger/Preserve.pm
/usr/share/perl5/MKDoc/XML/Token.pm
/usr/share/perl5/MKDoc/XML/Tokenizer.pm
/usr/share/perl5/MKDoc/XML/TreeBuilder.pm
/usr/share/perl5/MKDoc/XML/TreePrinter.pm