crm: fix pylint messages and enable coding style

4 jobs for fix/crm_coding_style in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-TestRunner2

02:54:10

failed ERP5.UnitTest-TestRunner2

04:32:35

passed ERP5.CodingStyleTest-TestRunner2

00:45:57

passed ERP5.UnitTest-TestRunner2

01:16:34