fix typo at app/models/user.rb (#5719)

Contributed by Tom Copeland.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11427 e93f8b46-1217-0410-a6f0-8f06a7374b81
German translation updated by Daniel Felix (#13202)

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11428 e93f8b46-1217-0410-a6f0-8f06a7374b81
Russian "almost_x_years" changed by Mikhail Velkin (#12645)

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11429 e93f8b46-1217-0410-a6f0-8f06a7374b81
Traditional Chinese translation updated and changed by ChunChang Lo (#13198)

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11430 e93f8b46-1217-0410-a6f0-8f06a7374b81
German "label_follows" translation changed by Daniel Felix (#13203)

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11431 e93f8b46-1217-0410-a6f0-8f06a7374b81