/usr/share/doc/ is in libpcapnav0-dev 0.8-3.
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/usr/share/doc/libpcapnav0-dev/
/usr/share/doc/libpcapnav0-dev/AUTHORS
/usr/share/doc/libpcapnav0-dev/copyright
/usr/share/doc/libpcapnav0-dev/README.gz
/usr/share/doc/libpcapnav0-dev/gtk-doc/
/usr/share/doc/libpcapnav0-dev/gtk-doc/html/
/usr/share/doc/libpcapnav0-dev/gtk-doc/html/pcapnav/
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/usr/share/doc/libpcapnav0-dev/gtk-doc/html/pcapnav/pcapnav-pcapnav-timestamp.html
/usr/share/doc/libpcapnav0-dev/gtk-doc/html/pcapnav/c17.html
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/usr/share/doc/libpcapnav0-dev/gtk-doc/html/pcapnav/c61.html
/usr/share/doc/libpcapnav0-dev/gtk-doc/html/pcapnav/pcapnav-pcapnav-macros.html
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/usr/share/doc/libpcapnav0-dev/gtk-doc/html/pcapnav/images/
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/usr/share/doc/libpcapnav0-dev/gtk-doc/html/pcapnav/api.html
/usr/share/doc-base/libpacap
/usr/share/doc/libpcapnav0-dev/changelog.Debian.gz