Remove stray comma from documentation.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194056 91177308-0d34-0410-b5e6-96231b3b80d8

www/cxx_status.html

@@ -49,7 +49,7 @@ C++11 features accepted as extensions. You can use Clang in C++11 mode with the
 with <a href="http://libcxx.llvm.org/">libc++</a> or with gcc's libstdc++, but
 patches are needed to make <a href="libstdc++4.4-clang0x.patch">libstdc++-4.4</a>
 work with Clang in C++11 mode. Patches are also needed to make
-<a href="libstdc++4.6-clang11.patch">libstdc++-4.6</a>,
+<a href="libstdc++4.6-clang11.patch">libstdc++-4.6</a>
 and <a href="libstdc++4.7-clang11.patch">libstdc++-4.7</a> work with Clang
 releases prior to version 3.2 in C++11 mode. <tt>thread_local</tt> support
 currently requires g++-4.8's C++ runtime library.</p>