* tools/dbus-launch.c (do_close_stderr): fix C89 problem and
	formatting problem

	* Mostly fix the DBusPipe mess.
	- put line break after function return types
	- put space before parens
	- do not pass structs around by value
	- don't use dbus_strerror after calling supposedly cross-platform
	api
	- don't name pipe variables "fd"
	- abstract special fd numbers like -1 and 1