/usr/share/common-lisp/source/ is in cl-zpb-ttf 0.7-2.
This file is owned by root:root, with mode 0o755.
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/usr/share/common-lisp/source/zpb-ttf/
/usr/share/common-lisp/source/zpb-ttf/bounding-box.lisp
/usr/share/common-lisp/source/zpb-ttf/cmap.lisp
/usr/share/common-lisp/source/zpb-ttf/conditions.lisp
/usr/share/common-lisp/source/zpb-ttf/font-loader-interface.lisp
/usr/share/common-lisp/source/zpb-ttf/font-loader.lisp
/usr/share/common-lisp/source/zpb-ttf/glyf.lisp
/usr/share/common-lisp/source/zpb-ttf/glyph.lisp
/usr/share/common-lisp/source/zpb-ttf/head.lisp
/usr/share/common-lisp/source/zpb-ttf/hhea.lisp
/usr/share/common-lisp/source/zpb-ttf/hmtx.lisp
/usr/share/common-lisp/source/zpb-ttf/kern.lisp
/usr/share/common-lisp/source/zpb-ttf/loca.lisp
/usr/share/common-lisp/source/zpb-ttf/maxp.lisp
/usr/share/common-lisp/source/zpb-ttf/name.lisp
/usr/share/common-lisp/source/zpb-ttf/package.lisp
/usr/share/common-lisp/source/zpb-ttf/post.lisp
/usr/share/common-lisp/source/zpb-ttf/util.lisp
/usr/share/common-lisp/source/zpb-ttf/zpb-ttf.asd