MB-5342 Really sleep indefinitely long.
MB-5342 Really sleep indefinitely long.

The old way didn't work in a very shameful way: table updater process
started in setup() function would send messages to the process. And
that of course would make indefinitely long sleep much shorter than
indefinitely long.

Change-Id: I8ad6b2ab8a30d2724a45541f88d3c5295d3437a8
Reviewed-on: http://review.couchbase.org/16948
Tested-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>
Reviewed-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>

membase/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,daverigby/ns_server,membase/ns_server,vzasade/ns_server,ceejatec/ns_server,ceejatec/ns_server,membase/ns_server,nimishzynga/ns_server,mschoch/ns_server,vzasade/ns_server,mschoch/ns_server,mschoch/ns_server,pavel-blagodov/ns_server,pavel-blagodov/ns_server,ceejatec/ns_server,nimishzynga/ns_server,pavel-blagodov/ns_server,mschoch/ns_server,daverigby/ns_server,pavel-blagodov/ns_server,daverigby/ns_server,membase/ns_server,ceejatec/ns_server,daverigby/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,ceejatec/ns_server,t3rm1n4l/ns_server,nimishzynga/ns_server,vzasade/ns_server,nimishzynga/ns_server,t3rm1n4l/ns_server,vzasade/ns_server,membase/ns_server,daverigby/ns_server,nimishzynga/ns_server,t3rm1n4l/ns_server,membase/ns_server,ceejatec/ns_server,nimishzynga/ns_server