samples/pktgen: Correct comments about the thread config

They all claimed to be two CPU examples using eth1, eth2 but
that is only true in one case!

Rob Jones pointed out spelling and grammar errors here, which I've
also corrected.

Cc: Rob Jones <rob.jones@codethink.co.uk>
Signed-off-by: NBen Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

samples/pktgen/pktgen.conf-1-1

@@ -18,7 +18,7 @@ function pgset() {
 
 
 # thread config
-# Each CPU has own thread. Two CPU exammple. We add eth1, eth2 respectivly.
+# Each CPU has its own thread. One CPU example. We add eth1.
 
 PGDEV=/proc/net/pktgen/kpktgend_0
   echo "Removing all devices"

samples/pktgen/pktgen.conf-1-1-flows

@@ -18,7 +18,7 @@ function pgset() {
 
 
 # thread config
-# Each CPU has own thread. Two CPU exammple. We add eth1, eth2 respectivly.
+# Each CPU has its own thread. One CPU example. We add eth1.
 
 PGDEV=/proc/net/pktgen/kpktgend_0
   echo "Removing all devices"

samples/pktgen/pktgen.conf-1-1-ip6

@@ -18,7 +18,7 @@ function pgset() {
 
 
 # thread config
-# Each CPU has own thread. Two CPU exammple. We add eth1, eth2 respectivly.
+# Each CPU has its own thread. One CPU example. We add eth1.
 # IPv6. Note increase in minimal packet length
 
 PGDEV=/proc/net/pktgen/kpktgend_0

samples/pktgen/pktgen.conf-1-1-ip6-rdos

@@ -18,7 +18,7 @@ function pgset() {
 
 
 # thread config
-# Each CPU has own thread. Two CPU exammple. We add eth1, eth2 respectivly.
+# Each CPU has its own thread. One CPU example. We add eth1.
 # IPv6. Note increase in minimal packet length
 
 PGDEV=/proc/net/pktgen/kpktgend_0

samples/pktgen/pktgen.conf-1-1-rdos

@@ -18,7 +18,7 @@ function pgset() {
 
 
 # thread config
-# Each CPU has own thread. Two CPU exammple. We add eth1, eth2 respectivly.
+# Each CPU has its own thread. One CPU example. We add eth1.
 
 PGDEV=/proc/net/pktgen/kpktgend_0
   echo "Removing all devices"

samples/pktgen/pktgen.conf-1-2

@@ -18,7 +18,7 @@ function pgset() {
 
 
 # thread config
-# One CPU means one thread. One CPU exammple. We add eth1, eth2 respectivly.
+# One CPU means one thread. One CPU example. We add eth1, eth2 respectivly.
 
 PGDEV=/proc/net/pktgen/kpktgend_0
   echo "Removing all devices"

samples/pktgen/pktgen.conf-2-1

@@ -18,7 +18,8 @@ function pgset() {
 
 
 # thread config
-# Each CPU has own thread. Two CPU exammple. We add eth1, eth2 respectivly.
+# Each CPU has its own thread. Two CPU example. We add eth1 to the first
+# and leave the second idle.
 
 PGDEV=/proc/net/pktgen/kpktgend_0
   echo "Removing all devices"

samples/pktgen/pktgen.conf-2-2

@@ -18,7 +18,7 @@ function pgset() {
 
 
 # thread config
-# Each CPU has own thread. Two CPU exammple. We add eth1, eth2 respectivly.
+# Each CPU has its own thread. Two CPU example. We add eth1, eth2 respectively.
 
 PGDEV=/proc/net/pktgen/kpktgend_0
   echo "Removing all devices"