[patch libiberty]: pex-win32 make sure that read handle has no inherit flag set, too

[DJ Delorie]

> > 2009-05-27  Kai Tietz  <kai.tietz@onevision.com>
> > 
> >         * pex-win32.c (pex_win32_fdopenr): Set INHERIT to false.

Kai, you're a windows/cygwin/mingw maintainer.  You don't need our
approval to fix bugs in files specific to your targets.