man: fix doc, ip link does support "change"

ip link does support "change".

if (matches(*argv, "set") == 0 ||
    matches(*argv, "change") == 0)
    return iplink_modify(RTM_NEWLINK, 0,
                 argc-1, argv+1);

The attached patch documents this.

Signed-off-by: Jiayun Chen <jiayunchen@smail.nju.edu.cn>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2 files changed