/usr/share/upstart/sessions/mediascanner-2.0.conf is in mediascanner2.0 0.111+16.04.20160317-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | description "Media Scanner"
author "James Henstridge <james.henstridge@canonical.com>"
start on started dbus
respawn
exec /usr/bin/mediascanner-service-2.0
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