timeutil: update parseWeekSpan() error messages

Signed-off-by: Maciej Borzecki <maciej.zenon.borzecki@canonical.com> 

1 files changed, 1 insertions, 1 deletions

diff --git a/timeutil/schedule.go b/timeutil/schedule.go
index a3346d32a4..b109faf7e6 100644
--- a/timeutil/schedule.go
+++ b/timeutil/schedule.go
@@ -525,7 +525,7 @@ func parseWeekSpan(s string) (*WeekSpan, error) {
 
	split := strings.Split(s, spanToken)
	if len(split) > 2 {
-	return nil, fmt.Errorf("cannot parse %q: incorrect format", s)
+	return nil, fmt.Errorf("cannot parse %q: invalid week span", s)
	}
 
	span.Start, err = parseWeekday(split[0])