64-unclean code in eval.c

[Stephen J. Turnbull]

Aidan Kehoe writes:

 >  > inhibit_flags. The below should fix things, if I understand things
 >  > correctly;

You'll still get a warning because the compiler will see the test is
always satisfied on AMD64.

 > -  else
 > +#if SIZEOF_EMACS_INT <= SIZEOF_INT
 > +  else 

I wish you would stop adding gratuitous trailing space.  git complains
a lot about your patches.  It's especially annoying in ChangeLogs, the
empty lines are supposed to be empty, but your patches occasionaly
introduce a TAB there.