Fix "ignore case" in DOMNodeComparator

[daltones]

The logic of $ignoreCase was inverted by mistake in DOMNodeComparator.

This made PHPUnit's assertXml*EqualsXml*() case-insensitive by default.

[codecov-io]

Codecov Report

Merging #53 into master will not change coverage.
The diff coverage is 0%.

@@            Coverage Diff            @@
##             master      #53   +/-   ##
=========================================
  Coverage     79.14%   79.14%           
  Complexity      122      122           
=========================================
  Files            15       15           
  Lines           326      326           
=========================================
  Hits            258      258           
  Misses           68       68

Impacted Files	Coverage Δ	Complexity Δ
src/DOMNodeComparator.php	58.33% <0%> (ø)	10 <0> (ø)	⬇️

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[daltones]

Hi @sebastianbergmann, thanks for merging it!

Can I count on a release with this fix soon?

[Ovsyanka]

@daltones I think you know It but in case you don't, there is a simple workaround about this and you could use it untill the release will be done.

$this->assertEquals($expectedDom, $xmlDom, "", 0.0, 10, true, true);