Sometimes the best solution is the quickest one, sure I could have written a Ruby script to format the results of the find but a few bash commands achieved the same result.
find
/svn/repos -name "authz" -exec grep dev {} ";" | grep -v
@dev | cut -d"=" -f 2|sed 's/,/\n/g'|sed 's/ //g'|sort|uniq >
/tmp/dev.txt
Doodle's Geek Monkey by
Alastair Montgomery