Forced commit, correct comment for last commit. 1.25 has nothing to do with

Forced commit, correct comment for last commit.  1.25 has nothing to do with
VFS and instead fixes an arithmatic overflow in the calculation of
(primarily) the nanoseconds field.  In particular, cputimer_freq64_nsec
cannot be multiplied much beyond cputimer_freq without overflowing.  The
overflow can result in a seriously incorrect nanoseconds field and mess up
ntpdate and pthreads, amoung other things.