man: use clsact qdisc for port mirroring examples on matchall and mirred

The clsact qdisc supports ingress and egress. Instead of using two qdiscs
to do ingress and egress port mirroring, clsact can be used. Therefore, use
clsact for the port mirroring examples on the tc-matchall.8 and tc-mirred.8
documents.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2 files changed