update_registry() returning false is not an error

It means that there were no changes.

Gir_Gst.toml

@@ -765,11 +765,6 @@ trait = false
 [[object]]
 name = "Gst.*"
 status = "generate"
-    [[object.function]]
-    name = "update_registry"
-        [object.function.return]
-        bool_return_is_error = "Failed to update registry"
-
     [[object.function]]
     name = "util_dump_mem"
     ignore = true

gstreamer/src/auto/functions.rs

@@ -10,7 +10,6 @@ use Error;
 #[cfg(any(feature = "v1_12", feature = "dox"))]
 use StackTraceFlags;
 use ffi;
-use glib;
 use glib::object::IsA;
 use glib::translate::*;
 use std;
@@ -144,10 +143,10 @@ pub fn parse_launchv(argv: &[&str]) -> Result<Element, Error> {
     }
 }
 
-pub fn update_registry() -> Result<(), glib::error::BoolError> {
+pub fn update_registry() -> bool {
     assert_initialized_main_thread!();
     unsafe {
-        glib::error::BoolError::from_glib(ffi::gst_update_registry(), "Failed to update registry")
+        from_glib(ffi::gst_update_registry())
     }
 }