missing exception clauses in libstdc++ source/header files?

[Matthias Klose]

Scanning the libstdc++ sources using a

  fgrep -Lr 'As a special exception, you may use' .

I found the following files missing the exception clause.

	Matthias


config/cpu/hppa/atomicity.h

	3.3 only, looks like a omission, all other atomicity.h files
	carry the note.

include/backward/iterator.h

	HP copyright, but all other files carry the note.

include/bits/boost_concept_check.h

	(C) Copyright Jeremy Siek 2000, this seems to be correct.

libsupc++/tinfo.h

	Names the copyright holder, but not the copyright.

po/string_literals.cc

	add the the note?

src/wstring-inst.cc

	3.3 only.

libio (all source files)
config/io/c_io_libio_codecvt.c