selftests: traceroute: Reword comment

Both of the addresses are configured as primary addresses, but the
kernel is expected to choose 10.0.1.1/24 as the source IP of the ICMP
error message since it is on the same subnet as the destination IP of
the message (10.0.1.3/24). Reword the comment to reflect that.

Reviewed-by: Petr Machata <[email protected]>
Signed-off-by: Ido Schimmel <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>

Author: idosch

tools/testing/selftests/net/traceroute.sh

@@ -203,10 +203,10 @@ run_traceroute6()
 # |H1|--------------------------|R1|--------------------------|H2|
 # ----            N1            ----            N2            ----
 #
-# where net.ipv4.icmp_errors_use_inbound_ifaddr is set on R1 and
-# 1.0.3.1/24 and 1.0.1.1/24 are respectively R1's primary and secondary
-# address on N1.
-#
+# where net.ipv4.icmp_errors_use_inbound_ifaddr is set on R1 and 1.0.3.1/24 and
+# 1.0.1.1/24 are R1's primary addresses on N1. The kernel is expected to prefer
+# a source address that is on the same subnet as the destination IP of the ICMP
+# error message.
 
 cleanup_traceroute()
 {