libstdc++: Fix comment to refer to correct PR

	* include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
	number in comment. Fix indentation.

libstdc++-v3/ChangeLog

 2020-02-06  Jonathan Wakely  <jwakely@redhat.com>
 
+	* include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
+	number in comment. Fix indentation.
+
 	* include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
 	redundant _GLIBCXX20_CONSTEXPR.
 

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

@@ -1737,12 +1737,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 
   namespace __detail
   {
-    // FIXME: This has to be at namespace-scope because of PR 92078.
+    // FIXME: This has to be at namespace-scope because of PR 92103.
     template<typename _Iter>
       struct __common_iter_ptr
-	{
-	  using type = void;
-	};
+      {
+	using type = void;
+      };
 
     template<typename _Iter>
       requires __detail::__common_iter_has_arrow<_Iter>