While we might never be able to have 100% of our code strict, we can at
the very least do it for all of our tests. This ensures that our tests
are using our API with the types as intended by the test author, and not
silently be cast to what our API requires.
* Misplaced Xml Writing Chart Label FillColor
Fix#3397. Move code to correct location.
* Update Issue3397Test.php
No need for spacing patch - just fix it now.
* Minor Fix
See discussion at bottom of PR #2856.