Option to use Pager to display help text

[rmanosuthi]

Hello,

This commit makes using a Pager to display help text optional.

HelpUsePager is initialized to true as to not break default behaviour.

Re: Test - I'm not sure how to write a test for this since the value is always initialized and ShowHelp then refers to that value. Assert.True(app.HelpUsePager)?

[natemcmaster]

Suggested slightly different naming. Don't worry about adding tests, this seems straightforward.

[natemcmaster]

Once this build completes https://dev.azure.com/natemcmaster/github/_build/results?buildId=160, there should be a daily build of this package published here: https://myget.org/feed/natemcmaster/package/nuget/McMaster.Extensions.CommandLineUtils

I'm going to wait 2 weeks to see if any other PRs come in for patch changes before releasing this to nuget.org

[simonech]

Nice... I was getting annoyed of that pager popping up all time for help. Why not making it false by default? It's the first time I see such behaviour in a cli.

[rmanosuthi]

You're right, not many programs have a similar feature, but I didn't want to change the default behaviour (of using the pager) or make assumptions about what people use/like.

The option's there now though 😃

[simonech]

@mpipo indeed... well.. technically not there yet... until new version is released 😄