User-agent: *
Disallow: /donor_list.php
Disallow: /trac
Disallow: /trac/log
Disallow: /trac/search
Disallow: /trac/query

User-agent: Googlebot
Allow: /trac/timeline
Allow: /trac/ticket
Allow: /trac/changeset
Allow: /trac/roadmap
Disallow: /trac/log
Disallow: /trac/search
Disallow: /trac/query
Disallow: /trac/report