tests: ip6: fix 'missing payload' error

ERROR: line 2: did not find payload information for rule 'iifname "eth0" ct state established,new tcp dport vmap {22 : drop, 222 : drop } masquerade'

Signed-off-by: Florian Westphal <[email protected]>

Author: Florian Westphal

tests/py/ip6/masquerade.t.payload.ip6

@@ -109,7 +109,7 @@ ip6 test-ip6 postrouting
   [ counter pkts 0 bytes 0 ]
   [ masq ]
 
-# iifname eth0 ct state new,established tcp dport vmap {22 : drop, 222 : drop } masquerade
+# iifname "eth0" ct state established,new tcp dport vmap {22 : drop, 222 : drop } masquerade
 __map%d test-ip6 b
 __map%d test-ip6 0
 	element 00001600  : 0 [end]	element 0000de00  : 0 [end]