Fix typo in martian_address.

util.c

@@ -401,8 +401,7 @@ martian_prefix(const unsigned char *prefix, int plen)
          (prefix[15] == 0 || prefix[15] == 1)) ||
         (plen >= 96 && v4mapped(prefix) &&
          ((plen >= 104 && (prefix[12] == 127 || prefix[12] == 0)) ||
-          (plen >= 100 &&
-           ((prefix[12] & 0xF0) == 0xF0 || (prefix[12] & 0xF0) == 0xE0))));
+          (plen >= 100 && (prefix[12] & 0xE0) == 0xE0)));
 }
 
 int