Xlsx Reader Defined Name on Sheet with Apostrophe in Title

[oleibman]

Fix #4356. Xlsx Reader needs to handle apostrophe for sheet title in defined name by converting doubled apostrophes to single.

Fix #4362. A similar problem to 4356, Style not handling sheet name with embedded apostrophe properly. And, with two examples in hand, I was able to determine a pattern to find and fix other possible exposures. It would not surprise me if there were similar exposures that I have not found yet. It also wouldn't be a huge surprise if this broke something, but no changes were required to the unit test suite to accommodate this change.

This is:

• a bugfix
• a new feature
• refactoring
• additional unit tests

Checklist:

• Changes are covered by unit tests
  • Changes are covered by existing unit tests
  • New unit tests have been added
• Code style is respected
• Commit message explains why the change is made (see https://github.com/erlang/otp/wiki/Writing-good-commit-messages)
• CHANGELOG.md contains a short summary of the change and a link to the pull request if applicable
• Documentation is updated as necessary

[oleibman]

It looks like there are several areas that might be subject to the same problem. I will try to identify and remediate them in the next few days.

[oleibman]

Scrutinizer's new issue is a false positive, and is now suppressed.