Merge pull request itanium-cxx-abi#168 from frederick-vs-ja/cwg-43

Explain the "early version" that disallowed reusing tail padding of POD

Author: rjmccall

abi.html

@@ -693,9 +693,10 @@ <h3><a href="#pod"> 2.2 POD Data Types </a></h3>
 The <i>dsize</i>, <i>nvsize</i>, and <i>nvalign</i> of these types are
 defined to be their ordinary size and alignment.  These properties
 only matter for non-empty class types that are used as base classes.
-We ignore tail padding for PODs because an early version of the
-standard did not allow us to use it for anything else and because it
-sometimes permits faster copying of the type.
+We ignore tail padding for PODs because the standard before the resolution
+of <a href="https://wg21.link/cwg43">CWG issue 43</a> did not allow us to use
+it for anything else and because it sometimes permits faster copying of the
+type.
 </p>
 
 <p> <hr> <p>