scm: fix annotate error with non ASCII author on Ruby 1.9 and Ruby 2.0. git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@12160 e93f8b46-1217-0410-a6f0-8f06a7374b81
scm: fix annotate error with non ASCII author on Ruby 1.9 and Ruby 2.0. git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@12160 e93f8b46-1217-0410-a6f0-8f06a7374b81