--- a/libpurple/buddyicon.h Fri Jul 23 04:34:08 2021 -0500
+++ b/libpurple/buddyicon.h Mon Jul 26 03:55:07 2021 -0500
@@ -176,7 +176,7 @@
* purple_buddy_icon_save_to_filename:
* @icon: The #PurpleBuddyIcon instance.
* @filename: The filename to write.
- * @error: (optional): A return address for a #GError.
+ * @error: (out) (optional): A return address for a #GError. * Writes the contents of @icon to @filename.