[patch] fix some comments in libstdc++ files

[Jonathan Wakely <jwakely at redhat dot com>]

Update an old URL and an old pathname.

Tested x86_64-linux, committed to 4.8, 4.9 and trunk.

commit 4692e5802722954c4dda17e8b7f4ed4b78bcc272
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu May 8 19:38:42 2014 +0100

    	* include/std/iostream: Fix URL in comment.
    	* src/c++98/ios_init.cc: Fix path in comment.

diff --git a/libstdc++-v3/include/std/iostream b/libstdc++-v3/include/std/iostream
index 85d2b95..5c10869 100644
--- a/libstdc++-v3/include/std/iostream
+++ b/libstdc++-v3/include/std/iostream
@@ -48,13 +48,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
    *
    *  The &lt;iostream&gt; header declares the eight <em>standard stream
    *  objects</em>.  For other declarations, see
-   *  http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch24.html
+   *  http://gcc.gnu.org/onlinedocs/libstdc++/manual/io.html
    *  and the @link iosfwd I/O forward declarations @endlink
    *
    *  They are required by default to cooperate with the global C
    *  library's @c FILE streams, and to be available during program
-   *  startup and termination. For more information, see the HOWTO
-   *  linked to above.
+   *  startup and termination. For more information, see the section of the
+   *  manual linked to above.
   */
   //@{
   extern istream cin;		/// Linked to standard input
diff --git a/libstdc++-v3/src/c++98/ios_init.cc b/libstdc++-v3/src/c++98/ios_init.cc
index d8d2a0d..b5c14f2 100644
--- a/libstdc++-v3/src/c++98/ios_init.cc
+++ b/libstdc++-v3/src/c++98/ios_init.cc
@@ -37,7 +37,7 @@ namespace __gnu_internal _GLIBCXX_VISIBILITY(hidden)
 {
   using namespace __gnu_cxx;
 
-  // Extern declarations for global objects in src/globals.cc.
+  // Extern declarations for global objects in src/c++98/globals.cc.
   extern stdio_sync_filebuf<char> buf_cout_sync;
   extern stdio_sync_filebuf<char> buf_cin_sync;
   extern stdio_sync_filebuf<char> buf_cerr_sync;