Simon L. B. Nielsen 52e3f1458b Add --numeric-owner to tar extract operations in portsnap.
This is done to speed up extraction significantly (both for portsnap
extract and update) in the case of slow NSS modules (like nss_ldap) as
it avoids having to look up uid and gid for root / wheel.

The reason this is a bigger problem for portsnap than for many other
system operations, is that portsnap executes tar(1) once for each port
so the internal uid/gid caching in tar(1) only helps a bit, resulting
in many user lookup calls.

Discussed with:	cperciva
2010-12-19 23:09:42 +00:00
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