Assume variadic macro support.

doc/topics/file_iteration.html

@@ -364,8 +364,8 @@ typedef TYPELIST((int, double, incomplete<void>)) xyz;
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 			There are two minor caveats with this result.&nbsp; First, certain types like <code>void</code>
 			can't be the type of an argument, so they have to be wrapped with <code>incomplete&lt;T&gt;</code>.&nbsp; 
-			Second, the necessary double parenthesis is annoying.&nbsp; If and when C++ 
-			gets C99's variadic macros, <code>TYPELIST</code> can be redefined:
+			Second, the necessary double parenthesis is annoying.&nbsp; With variadic macros,
+			<code>TYPELIST</code> can be redefined:
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