typo in test runner

[jensod]

ICSharpCode.Decompiler/Tests/TestRunner.cs line 75

        while ((line2 = r2.ReadLine()) != null) {
            ok = false;

•           diff.WriteLine("+" + line1);
  

•           diff.WriteLine("+" + line2);
      }
  

[jensod]

Formatter converted - and + to bullets the change needed is from line1 to line2

[dgrunwald]

Fix test runner diff output. Closed by 64b116c.