strict
Add a ``strict`` flag allowing users to restrict validation to IP addresses in presentation format (``a.b.c.d``) as opposed to address format (``a.b.c.d``, ``a.b.c``, ``a.b``, ``a``). https://github.com/netaddr/netaddr/issues/186 https://man7.org/linux/man-pages/man3/inet_pton.3.html https://bugzilla.redhat.com/show_bug.cgi?id=1924436 Change-Id: I10fed16dad77ac17691a5d175c42b25916dc8bc4 Closes-Bug: #1914386