Testnode frontend for logs

Fix for #20200514-218C705 - \[testnode\] frontend for log access

Depends on erp5!1304

See merge request !848
2 jobs for 1.0
Status Job ID Name Coverage
  External
failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python2

failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python3