r = in_addr_is_null(AF_INET6, &buffer);
if (r != 0) {
log_syntax(unit, LOG_ERR, filename, line, r,
- "IPv6 proxy NDP address can not be the ANY address, ignoring: %s", rvalue);
+ "IPv6 proxy NDP address cannot be the ANY address, ignoring: %s", rvalue);
return 0;
}