From 596f0f593a6a1aa29ad21ed0e5a1cb4de29e0d63 Mon Sep 17 00:00:00 2001
From: Alan Donovan
- p.57, ¶4: To "any comparison with NaN always yields false",
+ p.57, ¶4: To "any comparison with NaN always yields false",
add "(except !=, which is always the negation of
==)".
(Thanks to Luca Boasso, 2016-02-15.)