EditorUtility.DisplayDialog does not display entire text.

Reproduce:
1) Open attached sample project
2) The sample code is located in "Assets/Editor/DisplayDialogTest.cs"
3) Click the main menu item "BugReport > ShowDialogBug"

Observe that the text is not entirely displayed. I also added a screenshot of the messagebox how it looks on my system, you find it at "Assets/MissingText.png". Adding a linebreak at the end of the text does workaround the problem though.

Expected Behaviour:
The entire text should be displayed, no manual fiddling with linebreaking should be necessary.