Fix trivial warning on 24.04 for JointAxis_TEST.cc

[j-rivero]

🦟 Bug fix

Summary

A build of the sdf14 on the upcoming Ubuntu Noble return 3 warnings on the JointAxis_TEST.cc:

‘multiplier’ may be used uninitialized

Adding a default value when constructing seems enough.

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

[scpeters]

Suggested change

	double multiplier = 0.0;
	multiplier = mimicElem->Get<double>(
	errors, "multiplier", multiplier).first;
	double multiplier;
	multiplier = mimicElem->Get<double>(
	errors, "multiplier", 0.0).first;

This third argument is the default value; I think it's clearer to put the constant here instead of initializing multiplier.

[scpeters]

looking at the rest of the file, I see that your proposed change matches the pattern in the rest of the file, so you can ignore this suggestion if you want to maintain consistency, and I'll fix the rest of the file in a separate pull request

[j-rivero]

looking at the rest of the file, I see that your proposed change matches the pattern in the rest of the file, so you can ignore this suggestion if you want to maintain consistency, and I'll fix the rest of the file in a separate pull request

Looks good to me to have the changes under this PR 03cdb10 . Let me know if I'm missing any.

[scpeters]

I just updated two string default values to "" in c2f3204. Everything else looks good; thanks!