typo fix

includes/admin.form.inc

@@ -61,12 +61,12 @@ function islandora_repository_admin(array $form, array &$form_state) {
           '#description' => t('HTTP caching can reduce network traffic, by allowing clients to used cached copies.'),
           '#default_value' => variable_get('islandora_use_datastream_cache_headers', TRUE),
         ),
-        'islandora_defer_derivataves_on_ingest' => array(
+        'islandora_defer_derivatives_on_ingest' => array(
           '#type' => 'checkbox',
           '#title' => t('Defer derivative generation during ingest'),
           '#description' => t('Prevent derivatives from running during ingest,
             useful if derivatives are to be created by an external service.'),
-          '#default_value' => variable_get('islandora_defer_derivataves_on_ingest', FALSE),
+          '#default_value' => variable_get('islandora_defer_derivatives_on_ingest', FALSE),
         ),
       ),
       'islandora_namespace' => array(

islandora.install

@@ -46,7 +46,7 @@ function islandora_uninstall() {
   // Add new variables to clean up.
   $variables = array(
     'islandora_ds_replace_exclude_enforced',
-    'islandora_defer_derivataves_on_ingest',
+    'islandora_defer_derivatives_on_ingest',
   );
   array_walk($variables, 'variable_del');
 }

islandora.module

@@ -1965,7 +1965,7 @@ function islandora_menu_local_tasks_alter(&$data, $router_item, $root_path) {
  */
 function islandora_islandora_object_alter(AbstractObject $object, array &$context) {
   // Prevent derivative creation during ingest if var is set.
-  if ($context['action'] == 'ingest' && variable_get('islandora_defer_derivataves_on_ingest', FALSE)) {
+  if ($context['action'] == 'ingest' && variable_get('islandora_defer_derivatives_on_ingest', FALSE)) {
     module_load_include('inc', 'islandora', 'includes/derivatives');
     islandora_set_defer_derivatives_flag($object);
   }