fix unit search test failure (#13405)

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11674 e93f8b46-1217-0410-a6f0-8f06a7374b81
Dutch translations for 2.3-stable updated by Pieter Nicolai (#13552, #13551)

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11675 e93f8b46-1217-0410-a6f0-8f06a7374b81