FreeBSD Port: webmin-1.300_1

[Michael Wilson]

The makefile for the latest webmin port points to www.webmin.com/updates for
additional wbm downloads. However, the file is actually located at
download.webmin.com/updates 

The webmin.com server is configured for a 302 redirect, but fetch does not
obey 302's, so doing a "make" of webmin from the latest port fails when
attempting to download additional wbm archives.

Changing www.webmin.com in the Makefile to download.webmin.com fixes this
problem.