Backed out changeset b288debc6736
Only superusers can set lc_messages variable. This prevents connection in many
cases.
Closes #14010345.
===================
Changelog history
===================
.. include:: 3.22.rst
.. include:: 3.21.rst
.. include:: 3.20.rst
.. include:: 3.19.rst
.. include:: 3.18.rst
.. include:: 3.17.rst
.. include:: 3.16.rst
.. include:: 3.15.rst
.. include:: 3.14.rst