Merge r198118 from head to stable/8:

Merge r198118 from head to stable/8:

  Print routing statistics as unsigned short rather than unsigned int,
  otherwise sign extension leads to unlikely values when in the negative
  range of the signed short structure fields that hold the statistics.
  The type used to hold routing statistics is arguably also incorrect.

Approved by:	re (bz)

git-svn-id: svn://svn.freebsd.org/base/stable/8@198209 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f