cygwin setup 2.510.2.1 does not work because of an invaliditerator.

[Brian Dessent]

"M.Fujii" wrote:

> I found the cause of crash on setup.exe 2.510.2.1 built by GCC 3.4.4.
> Please try an attached patch.

Thanks for finding this.  I've committed your change (along with fixing
the  broken indentation in that function.)

Brian