iproute2: revert syntax help text mistake.

Sorry. The pref and prio options are actually synonyms.
This reverts part of commit 576c63ee59de3f18bec4ebd8181a5a395f268d03.

Signed-off-by: Andreas Henriksson <andreas@fatal.se>
Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com>
1 file changed