Display password when wp cli creates it

In an earlier version of wp cli, typing `wp user create bill bill.erickson@gmail.com` would generate a random password and then display it. Now it generates a password, but doesn't display it.

I understand why this was removed by default, but it would be nice if there was a way get it back, maybe passing --show_password=true or something. 

When I build a site for a client, I send them a review email that includes instructions on using every aspect of their site. At the top I include their username and password. 

Now that this feature has been removed, I either have to go to strongpasswordgenerator.com to copy a password, then `wp user create clientname client@email.com --user_pass=[paste password]`. Or, I just set the password to changeme, which isn't strong but less work.