The pgbadger build was failing on darwin due to an error while trying to
generate the package's documentation.
The pgbadger script is executed during the build to dump the help text.
The script's shebang line is too long on Darwin and needs to be
shortened using 'shortenPerlShebang' for it to execute.
checkInputs used to be added to nativeBuildInputs. Now we have
nativeCheckInputs to do that instead. Doing this treewide change allows
to keep hashes identical to before the introduction of
nativeCheckInputs.
