Different date formats

Please check the patch in #547650: Coding standards. I believe it takes care of all your concerns, but still needs to be ported to 6.x.

This is what you should see

  $items['admin/content/revision_deletion'] = array(
    'title' => 'Revisions to Mass Delete',
    'page callback' => 'revision_deletion_settings_page',
    'access arguments' => array(REV_DEL_PERM),
    'type' => MENU_NORMAL_ITEM,
    'description' => 'Configure or manually run the revision deletion module',
    );

  $items['admin/content/revision_deletion/list'] = array(
    'title' => 'List',
    'page callback' => 'revision_deletion_page',
    'access arguments' => array(REV_DEL_PERM),
    'type' => MENU_DEFAULT_LOCAL_TASK,
    );

  $items['admin/content/revision_deletion/settings'] = array(
    'title' => 'Settings',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('revision_deletion_settings'),
    'file' => 'revision_deletion.admin.inc',
    'access arguments' => array('administer site configuration'),
    'type' => MENU_LOCAL_TASK,
    'description' => 'Configure settings for the revision deletion module',
    );

I assume you did run update.php, which is necessary with the menu changes.

I called them "conditional" because they depend on the other settings as to whether or not they are produced. But I went ahead and changed them. BTW, have you looked at translation and whether there are any fixes needed for that?

Changing the title to reflect the new point. I figured you had run update, but just wanted a little reminder because even I forget once in a while.

Okay, changed the format.