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-rw-r--r--modules/system/system.api.php3
1 files changed, 3 insertions, 0 deletions
diff --git a/modules/system/system.api.php b/modules/system/system.api.php
index e9d5ba160..0275eb859 100644
--- a/modules/system/system.api.php
+++ b/modules/system/system.api.php
@@ -3012,6 +3012,9 @@ function hook_install() {
* See the batch operations page for more information on how to use the batch API:
* @link http://drupal.org/node/180528 http://drupal.org/node/180528 @endlink
*
+ * @param $sandbox
+ * Stores information for multipass updates. See above for more information.
+ *
* @throws DrupalUpdateException, PDOException
* In case of error, update hooks should throw an instance of DrupalUpdateException
* with a meaningful message for the user. If a database query fails for whatever