Also:

  $ emacs --batch --eval '(progn (message "to stderr.") (princ "to stderr?" t))' > /dev/null
  to stderr.
  $ emacs --batch --eval '(progn (princ "to stderr?" t) (message "to stderr."))' > /dev/null

  to stderr.

And worse:

  $ emacs --batch --eval '(progn (princ "to stdout!") (message "to stderr."))' > /dev/null

  to stderr.
  $ emacs --batch --eval '(progn (princ "to stdout!") (message "to stderr."))' 2> /dev/null
  to stdout!

(which I guess suggests that 'message' is the one adding the newline, not princ)

Clément.

On 2016-08-05 01:30, GNU bug Tracking System wrote:
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