MB-13234: Make `top` work on Ubuntu 12.04
MB-13234: Make `top` work on Ubuntu 12.04

The `top` in Ubuntu12.04 seems to do different command line parsing
than the one on CentOS. Separating the parameters should work on
both.

Change-Id: I8f9ec022bcb8e0158316fdaac226acbfb0d9d004
Reviewed-on: http://review.couchbase.org/50126
Reviewed-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>
Reviewed-by: Michael Wiederhold <a17fed27eaa842282862ff7c1b9c8395a26ac320@couchbase.com>
Tested-by: Volker Mische <fb414f8ac0dbbf87663550ae4ef5fc95b1041941@gmail.com>

mikewied/cbagent,couchbase/cbagent