slapos-node: Fix error message

15 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed Cloudooo.UnitTest-Master

00:06:26

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:22:38

failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

08:01:20

passed ERP5.StandaloneDeploymentScriptTest-Debian.Stretch

00:30:51

passed SlapOS-Master.StandaloneDeploymentScriptTest-Debian.Buster

00:30:06

passed SlapOS-Master.StandaloneDeploymentScriptTest-Debian.Stretch

00:42:57

passed SlapOS.Eggs.UnitTest-Master.Python2

00:12:51

passed SlapOS.Eggs.UnitTest-Master.Python3

00:14:04

passed SlapOS.SlapRunner.ResilienceTest-Master

00:22:53

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

01:28:33

failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python2

04:53:14

passed SlapOS.SoftwareReleases.IntegrationTest-Master.Python3

04:31:09

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:26:57

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

07:50:04

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Stretch

00:30:29