Checkmk Werk 15192: Handling overly long usernames

ID: 15192 Title: Handling overly long usernames Component: Setup Level: 1 Class: New feature Version: 2.0.0p37 Prior to this Werk, attempting to create a user with a very long name would partially create the user and then fail, leaving the user management GUI in an unusable state. Attempting to create such a user now fails gracefully with an error message.