From Bugzilla Helper:
User-Agent: Mozilla/4.77 [en] (X11; U; Linux 2.4.3 i686)
Description of problem:
Openssh only prints its messages in English, and expects yes/no upon
input. If the LANG variable is set to say french, the messages should
be in french, and the user should answer oui/non instead of yes/no.
Steps to Reproduce:
1. set environment variable LANG to "french".
2. slogin to a machine that is not in your known_hosts file.
3. slogin will issue a message (in English) saying type "yes" or "no"
to add the host to the known hosts list.
4. User must type "yes" or "no" at this point, instead of oui/non.
Actual Results: Messages and prompts are in english.
Expected Results: Error messages should be in French, and user should be
prompted to type "oui" or "non" instead of "yes" or "no".
I'm sorry, but this must be done upstream.
Report it at bugzilla.mindrot.org.