• Remove phrase 'bloat in the master source repository' as a leftover from the cvs times
• Remove phrase about 'automatically determining of closet master site...', it was in planing phase for more than 15 years
• Replace 'gzipped' with 'compressed' when appropriate
• Update url for the backup master site
• Fix typo: s/otn/from/
• Remove reference to DATA option

Differential Revision: https://reviews.freebsd.org/D1017
Approved by: portmgr (mat)