[docs] [issue12148] Clarify "or-ing together" doctest option flags

Éric Araujo <merwok@netwok.org> added the comment: I found “bitwise OR-ed” in library/fcntl.rst library/functions.rst library/os.rst library/winsound.rst (using grep, not Sphinx :) ---------- _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue12148> _______________________________________