MB-37491 Add missing parentheses and fix typos
MB-37491 Add missing parentheses and fix typos

Also added more detail to error message to know if it is a permission
error or if it is a folder already exist error.

Change-Id: Ib2b75270dad5667113b98e72eba63b3b4428fa51
Reviewed-on: http://review.couchbase.org/120987
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: James Lee <d8c596dede5f1eea3b1030b95e7922790d6e257e@couchbase.com>

couchbase/couchbase-cli,couchbase/couchbase-cli