/usr/share/doc/libmtpserver-dev/changelog.Debian.gz is in libmtpserver-dev 0.0.4+15.04.20150219-0ubuntu3~gcc5.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libmtpserver-dev/../libmtpserver1/changelog.Debian.gz