if this is run at the bottom of the terminal, it is rendered incorrectly:
$ printf %b 'foo\eEx\n'
xoo

it should be:
$ printf %b 'foo\eEx\n'
foo
x

looks like we aren't scrolling the buffer up one like other terminals (konsole/xterm).

http://vt100.net/docs/vt510-rm/NEL.html
Moves cursor to first position on next line. If cursor is at bottom margin, then screen performs a scroll-up.