MB-6958: added example usages for cbcollect_info
MB-6958: added example usages for cbcollect_info

Especially on Mac OS, couchbase root folder can be anywhere

Change-Id: Ibc4eb9d6b8c5a083cdb4acc763406af45e1af592
Reviewed-on: http://review.couchbase.org/21989
Reviewed-by: Bin Cui <ed18693fff32c00e22495f4877a3b901bed09041@gmail.com>
Tested-by: Bin Cui <ed18693fff32c00e22495f4877a3b901bed09041@gmail.com>

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