From the Debian people I got a hint:
After adding utf8_filesystem=YES to the vsftpd.conf I got the UTF8 in response to the FEAT command! So, problem solved!
I consider it to be a kind of 'undocumented feature' since the setting is missing in the man-page.
Also I assume the default of this setting can be defined at compile time by the package maintainer.
In Fedora 23 utf8_filesystem=YES seems to be the default.
Howsoever, IMHO the core of the problem is the non up-to-date man page.
Thanks to all for their assistance.
From the Debian people I got a hint:
After adding filesystem= YES
utf8_
to the vsftpd.conf I got the UTF8 in response to the FEAT command! So, problem solved!
I consider it to be a kind of 'undocumented feature' since the setting is missing in the man-page.
Also I assume the default of this setting can be defined at compile time by the package maintainer.
In Fedora 23 utf8_filesystem=YES seems to be the default.
Howsoever, IMHO the core of the problem is the non up-to-date man page.
Thanks to all for their assistance.