/usr/lib/perl5/GStreamer/Message/ is in libgstreamer-perl 0.16-1build1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/perl5/GStreamer/Message/Application.pod
/usr/lib/perl5/GStreamer/Message/AsyncDone.pod
/usr/lib/perl5/GStreamer/Message/AsyncStart.pod
/usr/lib/perl5/GStreamer/Message/ClockLost.pod
/usr/lib/perl5/GStreamer/Message/ClockProvide.pod
/usr/lib/perl5/GStreamer/Message/Custom.pod
/usr/lib/perl5/GStreamer/Message/Duration.pod
/usr/lib/perl5/GStreamer/Message/EOS.pod
/usr/lib/perl5/GStreamer/Message/Element.pod
/usr/lib/perl5/GStreamer/Message/Error.pod
/usr/lib/perl5/GStreamer/Message/Latency.pod
/usr/lib/perl5/GStreamer/Message/NewClock.pod
/usr/lib/perl5/GStreamer/Message/SegmentDone.pod
/usr/lib/perl5/GStreamer/Message/SegmentStart.pod
/usr/lib/perl5/GStreamer/Message/StateChanged.pod
/usr/lib/perl5/GStreamer/Message/StateDirty.pod
/usr/lib/perl5/GStreamer/Message/Tag.pod
/usr/lib/perl5/GStreamer/Message/Warning.pod