If you ever have an issue similar to below on debian or ubuntu
svn: warning: cannot set LC_CTYPE locale svn: warning: environment variable LANG is en_GB.UTF-8 svn: warning: please check that your locale name is correct
then run the following command to fix the problem, obviously choosing your locale, in my case for debian wheezy, I chose 122, which was `en_GB.UTF-8`
dpkg-reconfigure locales