[Qt-creator] QDir::relativeFilePath() changed 5.5.0 -> 5.5.1, please check your code

[Robert Löhning]

Hi,

the behavior of QDir::relativeFilePath() changed in
https://codereview.qt-project.org/113745/
and this caused
https://bugreports.qt.io/browse/QTCREATORBUG-14994
As this function is used in various other locations in Qt Creator, 
please check your code whether it needs updates as a reaction to that 
change.

Thank you,
Robert

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   Robert Löhning, Software Engineer - The Qt Company
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