addr: Function is_local_addr() looks at the /24 for IPv4
But the rest of tor, including its documentation (see
EnforceDistinctSubnets), looks at
/16 for IPv4.
Basically, the function
addrs_in_same_network_family() hard codes the
/16 validation but yet the
is_local_addr() used by the channeltls.c and dircache.c use
We ought to find out why? And probably fix that asap if this discrepancy is involuntary.