/usr/share/doc/ is in nagios-plugins-contrib 16.20151226.
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/usr/share/doc/nagios-plugins-contrib/
/usr/share/doc/nagios-plugins-contrib/README.Debian.plugins
/usr/share/doc/nagios-plugins-contrib/check_rbl/
/usr/share/doc/nagios-plugins-contrib/check_rbl/README
/usr/share/doc/nagios-plugins-contrib/check_backuppc/
/usr/share/doc/nagios-plugins-contrib/check_backuppc/README
/usr/share/doc/nagios-plugins-contrib/copyright
/usr/share/doc/nagios-plugins-contrib/check_ipmi_sensor/
/usr/share/doc/nagios-plugins-contrib/check_ipmi_sensor/default-combinedgraph.template
/usr/share/doc/nagios-plugins-contrib/check_mongodb/
/usr/share/doc/nagios-plugins-contrib/check_mongodb/README.md.gz
/usr/share/doc/nagios-plugins-contrib/changelog.gz
/usr/share/doc/nagios-plugins-contrib/check_email_delivery/
/usr/share/doc/nagios-plugins-contrib/check_email_delivery/How to test plugin.txt
/usr/share/doc/nagios-plugins-contrib/check_email_delivery/imap_ssl_cert.html
/usr/share/doc/nagios-plugins-contrib/check_email_delivery/README.txt
/usr/share/doc/nagios-plugins-contrib/check_email_delivery/check_imap_receive.html
/usr/share/doc/nagios-plugins-contrib/check_email_delivery/check_smtp_send.html
/usr/share/doc/nagios-plugins-contrib/check_email_delivery/How to connect to IMAP server manually.txt
/usr/share/doc/nagios-plugins-contrib/check_email_delivery/check_email_delivery.html
/usr/share/doc/nagios-plugins-contrib/check_email_delivery/check_imap_quota.html
/usr/share/doc/nagios-plugins-contrib/check_graphite/
/usr/share/doc/nagios-plugins-contrib/check_graphite/README.md
/usr/share/doc/nagios-plugins-contrib/check_lm_sensors/
/usr/share/doc/nagios-plugins-contrib/check_lm_sensors/README
/usr/share/doc/nagios-plugins-contrib/check_smstools/
/usr/share/doc/nagios-plugins-contrib/check_smstools/README.check_smstools
/usr/share/doc/nagios-plugins-contrib/check_ssl_cert/
/usr/share/doc/nagios-plugins-contrib/check_ssl_cert/README