* bus/selinux.c: Add c-file-style to top of file
	(log_audit_callback): Don't free the data here anymore
	(bus_selinux_check): Don't take spid and tpid since appending
	that to auxdata may OOM.
	(bus_selinux_allows_acquire_service): Handle OOM and signal back
	to the caller if we are OOM by taking an error object.
	(bus_selinux_allows_send): -do-

	* bus/selinux.h: Fix prototypes for bus_selinux_allows_acquire_service
	and bus_selinux_allows_send

	* bus/bus.c (bus_context_check_security_policy): Pass error and
	pass on OOM thrown by bus_selinux_allows_send()

	* bus/services.c (bus_registry_acquire_service): Pass error and
	pass on OOM thrown by bus_selinux_allows_acquire_service()