[PATCH] Apply DR235 correctly: reverse_iterator default ctor.

[Benjamin Kosnik]

Nathan, this looks fine. 

Usually, _GLIBCPP_RESOLVE_LIB_DEFECTS is used to mark this kind of stuff.

-benjamin

>2003-06-05  Nathan Myers  <ncm-nospam@cantrip.org>
>
>	* include/bits/stl_iterator.h (reverse_iterator::reverse_iterator()):
>	Apply DR235: default constructor default-initializes data member.
>	Instantiated on a pointer type, the member has to end up equal
>	to zero.