removed unnecessary dots from stats descriptions
removed unnecessary dots from stats descriptions

Change-Id: Ief644f4aa511ea3f8db7ee508e9b2fe3cc9603c5
Reviewed-on: http://review.couchbase.org/49456
Reviewed-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>
Tested-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>

nimishzynga/ns_server,membase/ns_server,nimishzynga/ns_server,membase/ns_server,nimishzynga/ns_server,nimishzynga/ns_server,membase/ns_server,nimishzynga/ns_server,mschoch/ns_server,nimishzynga/ns_server,membase/ns_server,ceejatec/ns_server,ceejatec/ns_server,ceejatec/ns_server,ceejatec/ns_server,ceejatec/ns_server,mschoch/ns_server,mschoch/ns_server,mschoch/ns_server,mschoch/ns_server,membase/ns_server,membase/ns_server,ceejatec/ns_server,mschoch/ns_server