Fix bug in getting authors from svn repo

This fixes a bug when there are spaces in the svn author names. I ran into this since Google Code's initial commit is done by the author `(no author)`, and the script would only print `(no`.

I had to add the `sed` to strip a leading space that slips through. If this can be done better, please improve.

`svn log --quiet http://traycd.googlecode.com/svn/ | grep -E "r[0-9]+ \| .+ \|" | awk '{print $3}' | sort | uniq` incorrectly lists `(no`

`svn log --quiet http://traycd.googlecode.com/svn/ | grep -E "r[0-9]+ \| .+ \|" | cut -d'|' -f2 | sed 's/^ //' | sort | uniq` correctly lists `(no author)`