Fix build on OS X

Change-Id: I753e8d57d4bcf205d83850b440f015743719d409
Reviewed-by: Mehdi Fekari <mfekari@blackberry.com>
Reviewed-by: Nicolas Arnaud-Cormos <nicolas@kdab.com>

src/plugins/qnx/cascadesimport/fileconverter.cpp

@@ -67,7 +67,7 @@ QByteArray FileConverter::loadFileContent(const QString &filePath, QString &erro
     QString absFilePath = filePath;
     if (!filePath.startsWith(QLatin1String(":/"))) {
         const QString srcProjectPath = convertedProjectContext().srcProjectPath();
-        absFilePath = srcProjectPath % QLatin1Char('/') % filePath;
+        absFilePath = srcProjectPath + QLatin1Char('/') + filePath;
     }
     fr.fetch(absFilePath);
     if (!fr.errorString().isEmpty())