Fix misplaced periods in tls

[waynew]

When giving something like "/path/to/some/file.crt" it's incorrect to
say "/path/to/some/file.crt." if the extension is not actually .crt.,
but .crt.

This fixes all of that in the tls module.

I may need to make some changes to expected test outputs.

What does this PR do?

Previously it would return something like this:

local:
    Created Private Key: "/etc/pki/tls/certs/localhost.key." Created Certificate: "/etc/pki/tls/certs/localhost.crt."

But that's uh... not the filename. It's not localhost.key. that was generated, it's localhost.key. That trailing period matters.

What issues does this PR fix or reference?

Didn't create one (yet)

Previous Behavior

You'd have to double check that the filename was really .crt or .key and didn't have an extra period at the end.

New Behavior

Now you don't, the actual filename is what's in the quotes.

Merge requirements satisfied?

[NOTICE] Bug fixes or features added to Salt require tests.

• Docs
• Changelog - https://docs.saltproject.io/en/master/topics/development/changelog.html
• Tests written/updated

Commits signed with GPG?

Yes

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Detected Issues (click me)

Check Known Missing Docstrings...........................................Failed
- hook id: invoke
- duration: 1.3s
- exit code: 1
/home/runner/.cache/pre-commit/repo52pd0ynv/py_env-python3/lib/python3.9/site-packages/_distutils_hack/init.py:30: UserWarning: Setuptools is replacing distutils.

warnings.warn("Setuptools is replacing distutils.")

The function 'validate' on 'salt/modules/tls.py' does not have a 'CLI Example:' in its docstring

Found 1 errors

---

Thanks again!