mod_lang ignores config options

[stsp]

It is not possible to disable NLS in
proftpd. Tried:

LangEngine off
UseEncoding off

But it still replies with the native language
strings. Maybe this is fine in some countries,
but in Russia there are several incompatible
charsets used, so the inability the select one
or disable NLS completely, is a big problem.
The only solution I've found is to remove the
.mo file. But this solution is obviously
sub-optimal.