Apply LWG 2048.  It is amazing to me that this actually works, but the existing tests confirm that it does.  c++1y status page now showing libc++ is complete for c++1y modulo dynarray issues.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@191142 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/www/cxx1y_status.html b/www/cxx1y_status.html
index e97dee1..96fade8 100644
--- a/www/cxx1y_status.html
+++ b/www/cxx1y_status.html
@@ -134,7 +134,7 @@
 	<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2123">2123</a></td><td>merge() allocator requirements for lists versus forward lists</td><td>Portland</td><td>Complete</td></tr>
 	<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2005">2005</a></td><td>unordered_map::insert(T&&) protection should apply to map too</td><td>Portland</td><td>Complete</td></tr>
 	<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2011">2011</a></td><td>Unexpected output required of strings</td><td>Portland</td><td>Complete</td></tr>
-	<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2048">2048</a></td><td>Unnecessary mem_fn overloads</td><td>Portland</td><td></td></tr>
+	<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2048">2048</a></td><td>Unnecessary mem_fn overloads</td><td>Portland</td><td>Complete</td></tr>
 	<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2049">2049</a></td><td>is_destructible is underspecified</td><td>Portland</td><td>Complete</td></tr>
 	<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2056">2056</a></td><td>future_errc enums start with value 0 (invalid value for broken_promise)</td><td>Portland</td><td>Complete</td></tr>
 	<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2058">2058</a></td><td>valarray and begin/end</td><td>Portland</td><td>Complete</td></tr>