/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/ is in gobject-introspection 1.56.1-1.
This file is owned by root:root, with mode 0o755.
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/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/callback.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/class.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/constructor.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/default.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/enum.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/field.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/function.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/interface.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/method.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/namespace.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/property.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/record.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/signal.tmpl
/usr/lib/x86_64-linux-gnu/gobject-introspection/giscanner/doctemplates/C/vfunc.tmpl