[docs] [issue21902] Docstring of math.acosh, asinh, and atanh

Mark Dickinson added the comment: Roundup message copied from #21902 (bad issue number): New changeset 36099a05d76a by Mark Dickinson in branch 'default': Issue #21092: Merge from 3.4. https://hg.python.org/cpython/rev/36099a05d76a ---------- _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue21902> _______________________________________