[wix-users] Double quotes in registry value

[Nir Bar]

Use square brackets to escape characters [\"].
See https://msdn.microsoft.com/en-us/library/windows/desktop/aa368609(v=vs.85).aspx for formatting rules




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Nir Bar, Independent WiX Expert. Creator of-
JetBA: WiX WPF Bootstrapper User Interface Framework

JetBA++: WiX Native Bootstrapper User Interface Framework