A customer had changed their code before it was under version control. So, it was different to the snapshot of it that I had.

This nifty command saved me

Skips all the ".svn is only in svn/blah/"

diff -r --brief current svn | grep -v "\.svn"

http://www.lanshack.com/fiber-optic-tutorial-termination.aspx

http://www.datacottage.com/nch/fibertermination.htm