Re: RFC: Change to the way sh -x works?

[Robert Elz <kre%munnari.OZ.AU@localhost>]

    Date:        Sun, 12 Nov 2017 20:14:37 +0100
    From:        Edgar =?iso-8859-1?B?RnXf?= <ef%math.uni-bonn.de@localhost>
    Message-ID:  <20171112191436.GQ73396%trav.math.uni-bonn.de@localhost>

  | After your change, would
  | 	set -x 2>/dev/stderr
  | effect the old behaviour?

Yes, the redirect is nothing special - that just falls out of the
implementation, it is simply "whatever stderr is now" (however it
got there) and that stays.   The code would need to change (using a
different mechanism - the set command has no idea how ste* got to be
in their current state - no more than any external command does)
to retain the old behaviour (or to select the new, like a new option.)

kre