Recognition of check_strings/only_variable_string.rb

[promarcel]

Describe the Bug

When checking for only variables in strings, there is a case where strings are not recognized even though they should be.

Only variables in strings formatted as follows are recognized correctly: "${variable}".
Unfortunately, however, the following format is not recognized: "${ variable }". Detail on the spaces after and before the curly bracket.

It is located inside the check check_strings/only_variable_string.rb.

Expected Behavior

The above format should also trigger the warning messages, even if Puppet interprets this notation correctly in manifests it should not be used as “best practice”.

Steps to Reproduce

Using "${ variable }" inside a Puppet manifest.

Environment

• Version: Latest from RubyGems (3.0.1)
• Platform: Ubuntu 22.04

Additional Context

No additional information provided. Unfortunately, I am not that familiar with Ruby to implement a fix for this by myself.