LineLength doesn't set ensure right margin is not exceeded

[davebarda]

When setting LineLength in the checkstyle configuration and importing this configuration to intellij,
the ensure right margin is not exceeded doesn't get checked, which doesn't make sense as we want the line to have a maximum length.

[jshiell]

Thanks for the report. The import code was a contribution so I'm not entirely familiar with it, but I'll try and have a look when I get a moment.