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Pager support for --help #7458

@headius

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@headius

This is a 3.0 feature that did not make it in time for 9.4. Low prioritiy, maybe a good beginner/intermediate issue.

When the environment variable RUBY_PAGER or PAGER is present and has a non-empty value, and the standard input and output are tty, the --help option shows the help message via the pager designated by the value. [Feature #16754]

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