Code improvement for custom plugin update centre

[andrius47]

Signed-off-by: andriusf47 andriusf47@gmail.com

Description

Small improvement to the code, that also makes custom plugin update centre, that has json with new lines work.

Issues Resolved

There are variants of local plugin update centre source code applications, that generates json with new lines, so this cookbook fails to properly parse plugin info.

Check List

• [ ] All tests pass. See https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/TESTING.MD
• [ ] New functionality includes testing.
• [ ] New functionality has been documented in the README if applicable
• [ ] All commits have been signed for the Developer Certificate of Origin. See https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/CONTRIBUTING.MD

[tas50]

Thanks @andrius47