MODULES-1565 - Fix regexes for EL5

iptables outputs are slightly different in EL5. Update the regexes to
account for this.

spec/acceptance/rules_spec.rb

@@ -257,13 +257,13 @@ class { '::firewall': }
         /LOCAL_INPUT_PRE/,
         /-A INPUT -m comment --comment \"001 LOCAL_INPUT_PRE\" -j LOCAL_INPUT_PRE/,
         /-A INPUT -m comment --comment \"010 INPUT allow established and related\" -m state --state RELATED,ESTABLISHED -j ACCEPT/,
-        /-A INPUT -d 127.0.0.0\/8 ! -i lo -m comment --comment \"011 reject local traffic not on loopback interface\" -j REJECT --reject-with icmp-port-unreachable/,
+        /-A INPUT -d 127.0.0.0\/(8|255\.0\.0\.0) (! -i|-i !) lo -m comment --comment \"011 reject local traffic not on loopback interface\" -j REJECT --reject-with icmp-port-unreachable/,
         /-A INPUT -i lo -m comment --comment \"012 accept loopback\" -j ACCEPT/,
         /-A INPUT -p icmp -m comment --comment \"013 icmp destination-unreachable\" -m icmp --icmp-type 3 -j ACCEPT/,
         /-A INPUT -s 10.0.0.0\/(8|255\.0\.0\.0) -p icmp -m comment --comment \"013 icmp echo-request\" -m icmp --icmp-type 8 -j ACCEPT/,
         /-A INPUT -p icmp -m comment --comment \"013 icmp time-exceeded\" -m icmp --icmp-type 11 -j ACCEPT/,
         /-A INPUT -p tcp -m multiport --dports 22 -m comment --comment \"020 ssh\" -m state --state NEW -j ACCEPT/,
-        /-A OUTPUT ! -o eth0:2 -p tcp -m multiport --dports 25 -m comment --comment \"025 smtp\" -m state --state NEW -j ACCEPT/,
+        /-A OUTPUT (! -o|-o !) eth0:2 -p tcp -m multiport --dports 25 -m comment --comment \"025 smtp\" -m state --state NEW -j ACCEPT/,
         /-A INPUT -i eth0:3 -p tcp -m multiport --dports 443 -m comment --comment \"443 ssl on aliased interface\" -m state --state NEW -j ACCEPT/,
         /-A INPUT -m comment --comment \"900 LOCAL_INPUT\" -j LOCAL_INPUT/,
         /-A INPUT -m comment --comment \"999 reject\" -j REJECT --reject-with icmp-host-prohibited/,