ntpd: correct fixed->float conversions of fractions

Need to divide by (1<<32), not by (1<<32)-1.
Fraction of 0xffffffff is not 1 whole second.

function                                             old     new   delta
.rodata                                           105264  105268      +4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
1 file changed