Reuse Doxygen comments for map::erase overloads

	* include/bits/stl_map.h (map::erase(iterator)): Add Doxygen markup
	to reuse documentation for erase(const_iterator) overload.
	* include/bits/stl_multimap.h (multimap::erase(iterator)): Likewise.

From-SVN: r243758

libstdc++-v3/ChangeLog

 2016-12-16  Jonathan Wakely  <jwakely@redhat.com>
 
+	* include/bits/stl_map.h (map::erase(iterator)): Add Doxygen markup
+	to reuse documentation for erase(const_iterator) overload.
+	* include/bits/stl_multimap.h (multimap::erase(iterator)): Likewise.
+
 	* include/bits/stl_tree.h (_Rb_tree::_M_erase_aux(const_iterator)):
 	Add assertion for undefined argument.
 	(_Rb_tree::_M_erase_aux(const_iterator, const_iterator)): Call

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

@@ -999,6 +999,8 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
        *  the element, and that if the element is itself a pointer,
        *  the pointed-to memory is not touched in any way.  Managing
        *  the pointer is the user's responsibility.
+       *
+       *  @{
        */
       iterator
       erase(const_iterator __position)
@@ -1009,6 +1011,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
       iterator
       erase(iterator __position)
       { return _M_t.erase(__position); }
+      // @}
 #else
       /**
        *  @brief Erases an element from a %map.

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

@@ -669,6 +669,8 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
        *  and that if the element is itself a pointer, the pointed-to memory is
        *  not touched in any way.  Managing the pointer is the user's
        *  responsibility.
+       *
+       * @{
        */
       iterator
       erase(const_iterator __position)
@@ -679,6 +681,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
       iterator
       erase(iterator __position)
       { return _M_t.erase(__position); }
+      // @}
 #else
       /**
        *  @brief Erases an element from a %multimap.