7 string references to 'language_default' in Drupal 6

locale_add_language in includes/locale.inc

API function to add a language.

locale_languages_edit_form_submit in includes/locale.inc

Process the language editing form submission.

locale_languages_overview_form_submit in includes/locale.inc

Process language overview form submissions, updating existing languages.

locale_uninstall in modules/locale/locale.install

Implementation of hook_uninstall().

locale_update_6000 in modules/locale/locale.install

{locales_meta} table became {languages}.

locale_update_6005 in modules/locale/locale.install

Change language setting variable of content types.

_locale_rebuild_js in includes/locale.inc

(Re-)Creates the JavaScript translation file for a language.