[cxx_status] Minor wording tweaks.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211471 91177308-0d34-0410-b5e6-96231b3b80d8

www/cxx_status.html

@@ -50,11 +50,11 @@ each language mode.</p>
 
 <p>Clang implements all of the ISO C++ 1998 standard
   (including the defects addressed in the ISO C++ 2003 standard)
-  except for <tt>export</tt> (which has been removed in C++11).
+  except for <tt>export</tt> (which was removed in C++11).
 
 <h2 id="cxx11">C++11 implementation status</h2>
 
-  <p>Clang implements all of the <a
+  <p>Clang 3.3 and later implement all of the <a
     href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=50372">ISO
     C++ 2011 standard</a>. The following table describes the Clang version
   in which each feature became available.</p>
@@ -424,7 +424,7 @@ change.</span>
 
 <h2 id="cxx14">C++1y implementation status</h2>
 
-<p>Clang implements all of the Draft International Standard (see <a
+<p>Clang 3.4 and later implement all of the Draft International Standard (see <a
 href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3797.pdf">most
 recent publicly available draft</a>)
 of the upcoming C++ language standard, provisionally named C++1y.  The following