erp5_document_scanner: remove plural from alarm id

14 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-Master

01:19:55

failed ERP5.PerformanceTest-Master

00:32:29

failed ERP5.UnitTest-Master

01:34:38

passed SlapOS.Eggs.UnitTest-Master.Python2

00:22:00

passed SlapOS.Eggs.UnitTest-Master.Python3

canceled ERP5.PerformanceTest-Master

failed ERP5.PerformanceTest-Master

00:32:36

canceled ERP5.UnitTest-Master

failed ERP5.UnitTest-Master

01:46:30

failed ERP5.UnitTest-Master

01:58:55

failed ERP5.UnitTest-Master

01:48:53

canceled ERP5.UnitTest-Master

passed SlapOS.Eggs.UnitTest-Master.Python2

00:19:02

passed SlapOS.Eggs.UnitTest-Master.Python3