GUACAMOLE-448: Fix typo in translation file.
GUACAMOLE-448: Fix typo in translation file.

jmuehlner/incubator-guacamole-client,necouchman/incubator-guacamole-client,mike-jumper/incubator-guacamole-client,glyptodon/guacamole-client,necouchman/incubator-guacamole-client,glyptodon/guacamole-client,mike-jumper/incubator-guacamole-client,mike-jumper/incubator-guacamole-client,jmuehlner/incubator-guacamole-client,necouchman/incubator-guacamole-client,jmuehlner/incubator-guacamole-client,glyptodon/guacamole-client,glyptodon/guacamole-client,glyptodon/guacamole-client,mike-jumper/incubator-guacamole-client,necouchman/incubator-guacamole-client,jmuehlner/incubator-guacamole-client