fixing logic in the IPv6 forwarding setting check

From akarl10 on GitHub:

	(value != 1 || value != 2) is always true
	should be (value != 1 && value != 2)

CHANGES

@@ -1,3 +1,6 @@
+2013/10/02	releasing 1.9.5
+		minor fix in IPv6 forwarding setting check <akarl10>
+
 2013/10/01	releasing 1.9.4
 
 2013/09/24	Added a Makefile target to generate hashes and a gpg signature

VERSION

@@ -3,4 +3,4 @@
 #
 # If adding rcX, be sure to separate with a '-' 
 #
-1.9.4
+1.9.5

radvd.c

@@ -830,13 +830,13 @@ check_ip6_forwarding(void)
      *
      * Which is sometimes used on routers performing RS on their WAN (ppp, etc.) links
      */
-	if ((value != 1 || value != 2) && !warned) {
+	if (!warned && value != 1 && value != 2) {
 		warned = 1;
 		flog(LOG_DEBUG, "IPv6 forwarding setting is: %u, should be 1 or 2", value);
 		return(-1);
 	}
 #else
-	if (value != 1 && !warned) {
+	if (!warned && value != 1) {
 		warned = 1;
 		flog(LOG_DEBUG, "IPv6 forwarding setting is: %u, should be 1", value);
 		return(-1);