/usr/share/genometools/gtdata/modules/gtdoclib/ is in genometools-common 1.5.1-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/genometools/gtdata/modules/gtdoclib/class.lp
/usr/share/genometools/gtdata/modules/gtdoclib/class_comments.lp
/usr/share/genometools/gtdata/modules/gtdoclib/class_comments_latex.lp
/usr/share/genometools/gtdata/modules/gtdoclib/class_latex.lp
/usr/share/genometools/gtdata/modules/gtdoclib/classes.lp
/usr/share/genometools/gtdata/modules/gtdoclib/classes_latex.lp
/usr/share/genometools/gtdata/modules/gtdoclib/docbase.lua
/usr/share/genometools/gtdata/modules/gtdoclib/docparser.lua
/usr/share/genometools/gtdata/modules/gtdoclib/docvisitorhtml.lua
/usr/share/genometools/gtdata/modules/gtdoclib/docvisitorlatex.lua
/usr/share/genometools/gtdata/modules/gtdoclib/docvisitortxt.lua
/usr/share/genometools/gtdata/modules/gtdoclib/footer.lp
/usr/share/genometools/gtdata/modules/gtdoclib/footer_latex.lp
/usr/share/genometools/gtdata/modules/gtdoclib/funcdef.lp
/usr/share/genometools/gtdata/modules/gtdoclib/funcdef_latex.lp
/usr/share/genometools/gtdata/modules/gtdoclib/gtscript_header.lp
/usr/share/genometools/gtdata/modules/gtdoclib/gtscript_header_latex.lp
/usr/share/genometools/gtdata/modules/gtdoclib/index.lp
/usr/share/genometools/gtdata/modules/gtdoclib/libgenometools_header.lp
/usr/share/genometools/gtdata/modules/gtdoclib/libgenometools_header_latex.lp
/usr/share/genometools/gtdata/modules/gtdoclib/method.lp
/usr/share/genometools/gtdata/modules/gtdoclib/method_latex.lp
/usr/share/genometools/gtdata/modules/gtdoclib/module.lp
/usr/share/genometools/gtdata/modules/gtdoclib/module_latex.lp
/usr/share/genometools/gtdata/modules/gtdoclib/modules.lp
/usr/share/genometools/gtdata/modules/gtdoclib/modules_latex.lp
/usr/share/genometools/gtdata/modules/gtdoclib/sole_function.lp
/usr/share/genometools/gtdata/modules/gtdoclib/sole_function_latex.lp