TERM=dumb / emacs

[Ilya N. Golubev]

The readline / bash bug described in <comint: long lines truncated>
may be fixed or not fixed.  In any case, for some long time we will
have to deal with programs where this bug is present.  And it will be
a bug only of some programs, not of whole system.  So there must be a
way in `comint.el' to revert to old `TERM=emacs' setting, and for some
particular program being run, not globally.

So checking for

(and (boundp 'system-uses-terminfo) system-uses-terminfo)

, like in emacs main cvs trunk, is *not* what should be copied.