From the blogging this to remember next time department:
find src -type f \ | grep -v svn \ | while read f do echo "FILE:$f" svn log -q done \ | egrep 'FILE|bob'
Additional svn log options like -r can be used to restrict the range.
Update: Julian mentions a way to avoid the grep, using find src -name .svn -prune -o -type f -print
