/usr/lib/swish-e/ is in swish-e 2.4.7-4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/swish-e/DirTree.pl
/usr/lib/swish-e/perl/
/usr/lib/swish-e/perl/SWISH/
/usr/lib/swish-e/perl/SWISH/DateRanges.pm
/usr/lib/swish-e/perl/SWISH/DefaultHighlight.pm
/usr/lib/swish-e/perl/SWISH/Filter.pm
/usr/lib/swish-e/perl/SWISH/Filters/
/usr/lib/swish-e/perl/SWISH/Filters/Doc2html.pm
/usr/lib/swish-e/perl/SWISH/Filters/Doc2txt.pm
/usr/lib/swish-e/perl/SWISH/Filters/ID3toHTML.pm
/usr/lib/swish-e/perl/SWISH/Filters/Pdf2HTML.pm
/usr/lib/swish-e/perl/SWISH/Filters/XLtoHTML.pm
/usr/lib/swish-e/perl/SWISH/Filters/pp2html.pm
/usr/lib/swish-e/perl/SWISH/ParseQuery.pm
/usr/lib/swish-e/perl/SWISH/PhraseHighlight.pm
/usr/lib/swish-e/perl/SWISH/SimpleHighlight.pm
/usr/lib/swish-e/perl/SWISH/TemplateDefault.pm
/usr/lib/swish-e/perl/SWISH/TemplateDumper.pm
/usr/lib/swish-e/perl/SWISH/TemplateFrame.pm
/usr/lib/swish-e/perl/SWISH/TemplateHTMLTemplate.pm
/usr/lib/swish-e/perl/SWISH/TemplateToolkit.pm
/usr/lib/swish-e/perl/doc2txt.pm
/usr/lib/swish-e/perl/pdf2html.pm
/usr/lib/swish-e/perl/pdf2xml.pm
/usr/lib/swish-e/search.cgi
/usr/lib/swish-e/spider.pl
/usr/lib/swish-e/swish.cgi
/usr/lib/swish-e/swishspider