Commit Briefs
9term: set TERM=dumb instead of TERM=9term
Everyone seems to assume that TERM != dumb implies ANSI escape codes are okay. In fact, many people assume that unconditionally, but it is easier to argue back about TERM=dumb than TERM=9term. This applies to acme win too, because they share the code. Set termprog=9term or termprog=win for clients who need to know. R=rsc CC=r https://codereview.appspot.com/12532043
9term, win: better echo cancellation
Also just drop \r from output. It's a losing battle to keep turning it off. R=rsc http://codereview.appspot.com/2128042