Oh. Well, I partially ran the commands
Code:
cd /Library
sudo svn co http://zsh-templates-osx.googlecode.com/svn/trunk/Library/init
cd /private
sudo svn co http://zsh-templates-osx.googlecode.com/svn/trunk/etc
Before accidentally closing the terminal window mid-execute. I think the first svn checkout was in progress as a sudo was still active, so that's why I think the problem lies there.
EDIT: Well, as is often the case with anything, a reboot did the trick. It also turned out that I had about 20 login processes running that I couldn't kill, so I think that's actually where the problem is.