splunk_metadata - is_global? -> global?

[ptgeorge]

Pull Request (PR) description

The function "is_global?" should be named "global?".

Reference: https://github.com/puppetlabs/puppetlabs-inifile/blob/main/lib/puppet/util/ini_file/section.rb#L28-L30

This Pull Request (PR) fixes the following issues

n/a

[smortex]

D'oh! Puppet 5 :upside_down_face: The build failure is expected and not transient. I opened #313 to address this specific issue.

[root-expert]

Hello @ptgeorge can you rabase with our master branch?