Update to 20010823. I feel it's getting as stable as before... :)

Overall:

• Fix commands and libraries to run on a statically linked ruby.

• If a command fails to load dynamic modules with dynamically linked ruby, restart itself with statically linked ruby.

This is to cope with the 4.3 -> 4.4 upgrade, since ruby's dynamic modules
are under a directory with a name including a FreeBSD version. Now
portupgrade can upgrade itself and ruby even after a major FreeBSD upgrade.

portupgrade:

• Fix a bug where portupgrade -sS 'su root -c %s' did not properly work. [Submitted by: KOMATSU Shinichiro <koma2@jiro.c.u-tokyo.ac.jp>]

portcvsweb:

• Accept a port path as well.

portsdb:

• Adopt better error handling and a better PORTS_DBDIR selection algorithm.

• Check database errors a bit harder.