i386 code label alignment patch (version 2)

[Jeffrey A Law]

  In message < 199805182052.QAA29451@subrogation.cygnus.com >you write:
  >    I can change this to use feature tests if desired.  It may been harder
  >    to reliably determine if a feature is available using feature tests
  >    instead of gas version numbers in some cases.  Feature tests certainly
  >    make sense if supporting features that are expected to be implemented
  >    in the same fashion by more than one assembler vendor.  At the moment
  >    I'm only concerned with taking advantage of newer gas specific features.
  >    It seems cleaner in this scenario to merely check GAS_MAJOR_VERSION and
  >    GAS_MINOR_VERSION.
  > 
  > I think feature tests are always better than version number tests.  I
  > think version number tests are a last resort.  That's because you
  > don't actually care what version number you are using.  You only care
  > whether a particular feature works.  You might be using some weird
  > mutant gas which thinks that it's version 970813 or something (and
  > believe me, there are plenty of such mutants out there).
Ian has raised an excellent point.  I think we're better off with
a feature test.

jeff