Added Finnish locale name to the comments.

js/fileinput_locale_fi.js

@@ -1,5 +1,5 @@
 /*!
- * FileInput <_LANG_> Translations
+ * FileInput Finnish Translations
  *
  * This file must be loaded after 'fileinput.js'. Patterns in braces '{}', or
  * any HTML markup tags in the messages must not be converted or translated.