fix incorrect protocol name and number for egp

previously if you called getprotobyname("egp") you would get
NULL because \008 is invalid octal and so the protocol id was
interpreted as 0 and name as "8egp".

src/network/proto.c

@@ -12,7 +12,7 @@ static const unsigned char protos[] = {
 	"\004ipencap\0"
 	"\005st\0"
 	"\006tcp\0"
-	"\008egp\0"
+	"\010egp\0"
 	"\014pup\0"
 	"\021udp\0"
 	"\024hmp\0"