fix snapd-maintenance-msg #322

Job	Run time
snap-builds	0s
cache-build-deps	1m 51s
static-checks (1.18)	5m 17s
static-checks (latest/stable)	8m 46s
unit-tests (1.18, normal)	7m 20s
unit-tests (1.18, snapd_debug)	9m 5s
unit-tests (1.18, withbootassetstesting)	8m 16s
unit-tests (1.18, nosecboot)	8m 15s
unit-tests (1.18, faultinject)	6m 56s
unit-tests (latest/stable, normal)	7m 21s
unit-tests (latest/stable, snapd_debug)	8m 56s
unit-tests (latest/stable, withbootassetstesting)	8m 51s
unit-tests (latest/stable, nosecboot)	7m 51s
unit-tests (latest/stable, faultinject)	7m 39s
code-coverage	8s
spread-nested	0s
spread	0s
	1h 36m 32s

Provide feedback