Add optflags for i486/i586, delete the silly i[789]86 entries.
Add optflags for i486/i586, delete the silly i[789]86 entries.

devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5