* doc/misc/dbus.texi (Asynchronous Methods): HANDLER can also be
(HANDLER . ERROR-HANDLER).
* etc/NEWS: Mention ERROR-HANDLER of dbus-call-method-asynchronously.
* lisp/net/dbus.el (dbus-call-method-asynchronously): Adapt docstring.
(dbus-check-event, dbus-handle-event): HANDLER can also be
(HANDLER . ERROR-HANDLER).
* src/dbusbind.c (Fdbus_message_internal): HANDLER can also be
(HANDLER . ERROR-HANDLER). (Bug#80952)
* test/lisp/net/dbus-tests.el (dbus--test-method-another-handler)
(dbus--test-method-error-handler): New defvars.
(dbus--test-method-another-handler)
(dbus--test-method-error-handler): New functions.
(dbus-test04-call-method-error-handler): New test.
(dbus-test10-keep-fd): Extend test.
Michael Albinus
833553dd9a