[jdk18] RFR: JDK-8273179: Update nroff pages in JDK 18 before RC

[Jonathan Gibbons]

On Fri, 10 Dec 2021 01:46:03 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

> Please review this semi-automatic update for the nroff man pages for JDK 18.  The changes update the version number, copyright year, and incorporate the changes from the latest upstream files.

Hi David,

The copyright year will naturally sort itself out in a few weeks time ;-)  

When these changes make their way down from 18 to 19, we will probably want to regenerate these files with 19-EA.

-- Jon

We will also want to regenerate any appropriate files if any more updates to the man pages are made during the ramp down period.

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PR: https://git.openjdk.java.net/jdk18/pull/5