Declare jsonID

[dcooper16]

As reported in #3128, there are a few instances in which jsonID is used, but is not declared as a local variable. This PR fixes that problem.

In addition, for consistency, it changes run_sweet32() to use $jsonID rather than the hard coded string "SWEET32".

What is your pull request about?

• Bug fix
• Improvement
• New feature (adds functionality)
• Breaking change: bug fix, feature or improvement that would cause existing output (especially JSON, CSV) to not work as expected before
• Typo / spelling fix
• Documentation update
• Update of other files

If it's a code change please check the boxes which are applicable

• For the main program: My edits contain no tabs, indentation is five spaces and any line endings do not contain any blank chars
• I've read CONTRIBUTING.md
• My code follows Coding_Convention.md
• I have tested this fix or improvement against >=2 hosts and I couldn't spot a problem
• I have tested this new feature against >=2 hosts which show this feature and >=2 host which does not (in order to avoid side effects) . I couldn't spot a problem
• For the new feature I have made corresponding changes to the documentation and / or to help()
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AI section

• I found a bug / an improvement using LLM version: [e.g. GPT-A.B, Claude <NAME> A.B, Gemini A.B <NAME>, Qwen<B>-Coder, DeepSeek-<A> etc.]
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[drwetter]

Thanks, @dcooper16 !