PVS-Studio warning V655 for KDE4

void EntryDetails::updateButtons()
{
  ....
  foreach (....) {
    QString text = info.name;
    if (!info.distributionType.trimmed().isEmpty()) {
        text + " (" + info.distributionType.trimmed() + ")";//<==
    }
    QAction* installAction =
      installMenu->addAction(KIcon("dialog-ok"), text);
    installAction->setData(info.id);
  }
  ....
}

This suspicious code was found in KDE4 project by PVS-Studio static code analyzer.
Warning message is:
V655 The strings was concatenated but are not utilized. Consider inspecting the expression. entrydetailsdialog.cpp 225

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/