Fix CRect::CRect description

[matrohin]

According to the source code (see atltypes.h file) it actually initializes all members with = 0.

I checked that CPoint and CSize documentation is correct.
Please correct me if I'm wrong, here is the source code of CRect::CRect on my machine:

// CRect
inline CRect::CRect() throw()
{
	left = 0;
	top = 0;
	right = 0;
	bottom = 0;
}

[PRMerger19]

@matrohin : Thanks for your contribution! The author(s) have been notified to review your proposed change.

[colin-home]

@matrohin
Thanks for the update. It's possible the old documentation was true when it was written, but it's been incorrect for a long time.