Test::Pod::No404s exists - and can be used via its dzil plugin.

Many of the links that were updated did not return 404. They were mostly 302 or 500. Either way, if you want to do it another way that's fine, but here's the fix for several tickets even if you don't want my script.

What needs to happen for this to move forward?

The bin/check_links script needs to either be removed from the PR or excluded from the built dist.

It can be excluded from the dist by adding a line exclude_filename = bin/check_links to the [Git::GatherDir] section in dist.ini.

I've excluded the script in dist.ini. What else needs to happen for this to move forward?

Here's the patch file in case this PR loses the diff when I clean up my fork later this month. #7, #64, #84

0001-Fix-a-mess-of-links.-Most-are-http-https.patch
0002-Fix-the-remaining-broken-links-from-71.patch
0003-Report-and-fix-the-sites-we-can-t-connect-to.patch
0004-Add-some-docs.patch
0005-A-light-refactoring-and-add-an-exit-code-for-failure.patch
0006-Exclude-link-checking-script-from-distro.patch

Thanks @karenetheridge

Test::Pod::No404s exists - and can be used via its dzil plugin.

I'll be setting that up since, as astute readers of its docs may know, it actually handles more than just 404.