Decrease the sleep between loops from 2 to 1, and fix a typo. This should
help nodes in reload_pending get sucked into reloading faster. If it doesn't do enough, we'll need to do more batching of stuff, so we get some parallelism in os_load instead of forcing it to serialize by calling os_load one node at a time. I was tempted to nuke all the stuff that was in there from the netdisk reload type, but decided not to. It won't be too long (relatively speaking) before we have freed, the new "free node manager" that will replace/supersede our current reload_daemon anyway.