* @retval NOTMUCH_STATUS_NULL_POINTER: The given \a database
* argument is NULL.
*
+ * @retval NOTMUCH_STATUS_NO_CONFIG: No config file was found. Fatal.
+ *
* @retval NOTMUCH_STATUS_OUT_OF_MEMORY: Out of memory.
*
* @retval NOTMUCH_STATUS_FILE_ERROR: An error occurred trying to open the