dangling-gsl warning in libwixhelper.cpp

While experimenting with clang build on Windows, I noticed the following warning:

jdk\open\src\jdk.jpackage\windows\native\libwixhelper\libwixhelper.cpp(75,36): warning: object backing the pointer will be destroyed at the end of the full-expression [-Wdangling-gsl]
    const LPCTSTR upgradeCodeStr = upgradeCode.toMsiString().c_str();
                                   ^~~~~~~~~~~~~~~~~~~~~~~~~

The code was recently introduced in JDK-8283707.