[8.0][FIX] help_online: XMLRPC Call problem

To allow import of online help from XMLRPC a return value is required

help_online/models/import_help_wizard.py

@@ -47,3 +47,4 @@ class ImportHelpWizard(models.TransientModel):
                                    mode='init',
                                    noupdate=False,
                                    report=None)
+        return True