slapos_erp5: Fixup coding style

  Conflict resolution in git added a new line while editing the file
4 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
failed SlapOS-Master.UnitTest-Master

02:46:59

passed SlapOS.Eggs.UnitTest-Master.Python2

00:29:10

failed SlapOS.Eggs.UnitTest-Master.Python3

00:55:35

passed SlapOS.Eggs.UnitTest-Master.Python2

00:28:23