Changes

The plan for this is to extend the <code>--ext-unix-sk</code> semantics to work like this:

The plan for this is to extend the <code>--ext-unix-sk</code> semantics to work like this:

* On dump, the <code>--ext-unix-sk $id</code> says that socket with $id is OK to be disconnected

* On dump, the <code>--ext-unix-sk ''id''</code> says that socket with <code>''id''</code> is OK to be disconnected

* On restore, the <code>--ext-unix-sk$id[=$path]</code> says that the socket $id should be reconnected back to the path it say on dump (or to the $path).

* On restore, the <code>--ext-unix-sk ''id''[=''path'']</code> says that the socket <code>''id''</code> should be reconnected back to the path it say on dump (or to the specified <code>''path''</code>).

=== socketpair ===

=== socketpair ===