RFR: 8344559: Log is spammed by missing pandoc warnings when building man pages

[Erik Joelsson]

On Thu, 5 Dec 2024 10:59:36 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> If the user does not have pandoc installed and configured, the logs are spammed with the warning:
> 
> 
> Warning: pandoc not found. Not generating man pages
> 
> 
> once for each man page that should have been generated. 
> 
> This is excessive and should be removed. Instead, let configure inform the user that you cannot build man pages without pandoc.

Marked as reviewed by erikj (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/22573#pullrequestreview-2481809366