/usr/ is in libcollectdclient-dev 5.7.2-2ubuntu1.
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..
/usr/include/
/usr/include/collectd/
/usr/include/collectd/client.h
/usr/include/collectd/lcc_features.h
/usr/include/collectd/network.h
/usr/include/collectd/network_buffer.h
/usr/lib/
/usr/lib/pkgconfig/
/usr/lib/pkgconfig/libcollectdclient.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libcollectdclient-dev/
/usr/share/doc/libcollectdclient-dev/copyright
/usr/lib/libcollectdclient.so
/usr/share/doc/libcollectdclient-dev/AUTHORS.gz
/usr/share/doc/libcollectdclient-dev/README.Debian.gz
/usr/share/doc/libcollectdclient-dev/README.gz
/usr/share/doc/libcollectdclient-dev/changelog.Debian.gz