tree fe0f26f2ba63c9a5eb078b24fe3aa4633c8f43c6
parent 824c843556a80cd3b4003d1e9e583cfdf632d0c0
author Nicolas Dichtel <nicolas.dichtel@6wind.com> 1367594321 -0700
committer Stephen Hemminger <stephen@networkplumber.org> 1367609362 -0700

ip: add missing help about mode argument

There is three possibilities: only IPv6, only IPv4 or both.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>