/usr/lib/tmpfiles.d/gvfsd-fuse-tmpfiles.conf is in gvfs-common 1.20.1-1ubuntu1.
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 8 9 10 11 12 13 14 | # This is a systemd tmpfiles.d configuration file
#
# tmpfiles.d defaults are set to clean /run/user every now and then
# which includes our gvfs-fuse mount being mounted in /run/user/<id>/gvfs
#
# This file adds an exclusion rule so that user data don't get automatically
# cleaned up (i.e. destroyed).
#
# Due to our fuse mount restrictions root can't access nor stat the mountpoint
# resulting in warning spitted out by the systemd-tmpfiles process. Please
# ignore it for the time being until proper solution is found:
# https://bugzilla.gnome.org/show_bug.cgi?id=560658
x /run/user/*/gvfs
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