When installing updates, install new directories first and remove old
directories last.
Allow ~ in file names so libtool droppings in contrib don't break updates.
It has happened twice now, and is likely to happen again.
Be more selective when filtering for lib*.so.N files. These are deleted
at the end of the upgrade process, after warning users to upgrade any
3rd party software (e.g., from the ports tree) which might link to the
libraries being removed.
Approved by: re (gjb)
Errata Notice: FreeBSD-EN-13:04.freebsd-update
cf504dd159