Design nitpick: Custom navigation bar logo has unneeded margin-right without logo text

Summary

Afaik, one can only upload a custom navigation bar logo in GitLab CE. It is displayed correctly but still has a .title img { margin-right: 8px }, even though there is no .logo-text right after. Because of this, it is not centered horizontally but hangs a little bit left.

The margin should not be present unless there really is a non empty .logo-text.

Using omnibus GitLab 10.3.3, viewed in Firefox 58.0b15.

Steps to reproduce

Upload a custom navigation bar logo in gitlab CE and hover the navigation bar top logo.

Relevant logs and/or screenshots