[OpenAFS] intermediate file updates

[Craig_Everhart@transarc.com]

I think the canonical way to get this behavior is to write an even
simpler program:

	open specified output file from other program
	while (interested) {
		fsync(file)
		sleep (120 or whatever seconds)
	}

fsync() will store the file to the server where other clients can read it.

		Craig