There is no parameter called "eth-peer-configfile" in testpmd.
It should be "eth-peers-configfile". See the usage() method in
app/test-pmd/parameters.c.
Fixes: a67857e97ba8 ("doc: clarify usage of testpmd MAC forward mode")
Cc: stable@dpdk.org
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>