Fixed a typo in users list languge file.

Author: tbrehm

interface/web/admin/lib/lang/en_users.lng

@@ -3,7 +3,7 @@ $wb["username_txt"] = 'Username';
 $wb["username_err"] = 'username_err';
 $wb["passwort_txt"] = 'Password';
 $wb["modules_txt"] = 'Module';
-$wb["startmodule_txt"] = 'Startmodul';
+$wb["startmodule_txt"] = 'Startmodule';
 $wb["app_theme_txt"] = 'Design';
 $wb["typ_txt"] = 'Type';
 $wb["active_txt"] = 'Aktive';