[patch] Fix i386-mingw32 build failure

[Ross Ridge]

DJ Delorie wrote:
>Supporting #! in libiberty doesn't have to stop you from enhancing gcc
>anyway ;-)

Well, it's stopping a real fix for the MinGW build failure being made.
Adding #! support to libiberty won't work because the problem scripts
have MSYS/Cygwin paths for the shell (eg. "/bin/sh") that aren't likely
to be valid to plain Windows.

						Ross Ridge