Someone broke bootstrap

[Kelley Cook]

 > Commit done as obvious.
 > http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00283.html
 >
 > Tested with 2.5.4a and 2.5.31.  Note that 2.5.31 accepts both '-ooutput'
 > as well as '-o output', hence the mistake that Kelley made I assume.

It turns out the Debian's flex-old 2.5.4a-1 has the snippet below in its 
debian/changeLog why is apparently why I never ran into the bug even 
though I attempted to test with both 2.5.4a and a self-compiled 2.5.31.

flex (2.5.4a-15) unstable; urgency=low
   * flex -o "ddd" doesn't write to the file "ddd", instead it tries to
     write to the file "" (yes, blank) and read from "ddd". I changed the
     main.c to use the next arg as the output file name if the next arg
     does not start with a -.
closes: Bug#122581

Again, sorry to all and thanks again for Carlo and Bernd for fixing it.

Kelley Cook