(if the server supported the option), as "ANSI". Now, if the current cterm
emualation is PETASCII [sic], or ATASCII, send "PETSCII" or "ATASCII"
instead.

Now this brings up a couple of discussion points:
1. Should that default Telnet term-type be "ANSI-BBS" (or "ansi-bbs") instead?
2. Similarlly, RLogin connections *always* send the term-type as "ansi-bbs" -
   I think a similar change is needed in rlogin.c to be technically correct,
   but we should probably be consistent about how SyncTERM in ANSI-BBS emulation
   mode identifies itself ("ANSI", "ANSI-BBS", or "ansi-bbs").
3. If there is terminal type advertised via SSH, that probably needs addressing
   as well.