Bug#3235: nvi gives unhelpful message for unknown TERM type

[Ian Jackson <ian@chiark.chu.cam.ac.uk>]

Package: nvi
Version: 1.34-12

-chiark:~> echo $TERM
xterm
-chiark:~> vi
-chiark:~> TERM=spong vi
Error: newterm failed: No such file or directory.
-chiark:~>

Ian.