Comment 16 for bug 1638338

This is an upstream regression very probably caused by:

  https://anongit.mindrot.org/openssh.git/commit/?id=65c6c6b567ab5ab12945a5ad8e0ab3a8c26119cc

I'd suggest filing it upstream at https://bugzilla.mindrot.org/ - it may
be possible to preserve the intent of the above change by substituting a
deliberately-locale-unaware version of tolower() when parsing
configuration files, or maybe just by calling setlocale() after parsing
configuration files.

 status triaged