Don't allow IPv4 limited broadcast address as valid interface address.
Merge branch 'master' of github.com:SO3Group/ipaddrcheck
Merge branch 'master' of github.com:SO3Group/ipaddrcheck
Improve version message.
Add options for is-any-host and is-any-net to getopt code.
Add support for is-any-host and is-any-net checks.
Fix is_valid_intf_address() behaviour, don't allow network addresses
as valid interface addresses.