hashtable_policy.h (__detail::_Insert_base, [...]): Improve comments.

	* include/bits/hashtable_policy.h (__detail::_Insert_base,
	__detail::_Insert): Improve comments.

From-SVN: r235564

libstdc++-v3/ChangeLog

+2016-04-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/hashtable_policy.h (__detail::_Insert_base,
+	__detail::_Insert): Improve comments.
+
 2016-04-27  Jonathan Wakely  <jwakely@redhat.com>
 
 	PR libstdc++/70767

libstdc++-v3/include/bits/hashtable_policy.h

@@ -667,7 +667,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   /**
    *  Primary class template _Insert_base.
    *
-   *  insert member functions appropriate to all _Hashtables.
+   *  Defines @c insert member functions appropriate to all _Hashtables.
    */
   template<typename _Key, typename _Value, typename _Alloc,
 	   typename _ExtractKey, typename _Equal,
@@ -769,7 +769,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   /**
    *  Primary class template _Insert.
    *
-   *  Select insert member functions appropriate to _Hashtable policy choices.
+   *  Defines @c insert member functions that depend on _Hashtable policies,
+   *  via partial specializations.
    */
   template<typename _Key, typename _Value, typename _Alloc,
 	   typename _ExtractKey, typename _Equal,