Enable debug logging for MSIs when running bundles

[joeloff]

Is it possible to enable debug logging for bundles? For MSIs I can run msiexec with /l*xv. There is a global policy key for MSI logging, but that key is ignored when MsiEnableLog is called, which I believe is what burn is does when running an MSI.

[joeloff]

I think I've found the answer. At least looking at the v3 code in logging.cpp, it appears that Burn will read the policy key and if X|x is specified, add the additional debug option.