RFR: 13,docs JDK-8228494 Update nroff version of man pages

[Mandy Chung]

jabswitch is a windows-only tool and so no need for nroff page. 
Otherwise looks fine.

Mandy

On 7/23/19 10:40 AM, Jonathan Gibbons wrote:
> Please review an update to the nroff pages for JDK 13.
>
> (There are 3 new pages and 2 modified pages.)
>
> This is noreg-doc, so no further approvals are required for RDP2.
>
> -- Jon
>
> JBS: https://bugs.openjdk.java.net/browse/JDK-8228494
> Webrev: 
> http://cr.openjdk.java.net/~jjg/8228494-update-nroff-pages/webrev.00/
>