[GCC 4.8 changes] PATCH: Mention -maddress-mode=[short|long]

[H.J. Lu]

Hi,

This patch updates GCC 4.8 changes.html to mention
-maddress-mode=[short|long] for x32.  OK to install?


H.J.
---
Index: changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.8/changes.html,v
retrieving revision 1.95
diff -u -p -r1.95 changes.html
--- changes.html	11 Feb 2013 15:12:58 -0000	1.95
+++ changes.html	11 Feb 2013 18:03:31 -0000
@@ -460,6 +460,10 @@ B b(42); // OK
     wrong results.  You must build all
     modules with <code>-mpreferred-stack-boundary=3</code>, including any
     libraries.  This includes the system libraries and startup modules.</li>
+    <li>New <code>-maddress-mode=[short|long]</code> option for x32.
+    <code>-maddress-mode=short</code> overrides default 64-bit addresses to
+    32-bit by emitting 0x67 size prefix. This is the default address mode for
+    x32.</li>
     <li> New built-in functions to detect run-time CPU type and ISA:
     <ul>
       <li>A built-in function <code>__builtin_cpu_is</code> has been added to