We still get the errors logged, but we don't fail the service. This
is better for users because rerunning tmpfiles-setup.service a second
time is dangerous (c.f.
cd9f5b68ce08375eb1d68a4ddaa7a24a5092d7ba).
Note that this only touches sd-tmpfiles-setup.service and
sd-tmpfiles-setup-dev.service. sd-tmpfiles-clean.service is as before.
https://bugzilla.redhat.com/show_bug.cgi?id=1539341
Type=oneshot
RemainAfterExit=yes
ExecStart=@rootbindir@/systemd-tmpfiles --prefix=/dev --create --boot
-SuccessExitStatus=65
+SuccessExitStatus=65 73
Type=oneshot
RemainAfterExit=yes
ExecStart=@rootbindir@/systemd-tmpfiles --create --remove --boot --exclude-prefix=/dev
-SuccessExitStatus=65
+SuccessExitStatus=65 73