Fix VERSIONINFO for llvm-rc

[yeah-its-gloria]

Closes #155. Also fixes a printf format warning.

[CLAassistant]

All committers have signed the CLA.

[bashbaug]

Thank you for your contribution! I have one minor comment - not a must-fix but a nice-to-have.

[Kerilk]

Thanks for this contribution! I have a small question:

Disclaimer: I am no expert in Windows programming, so I may be saying something irrelevant here.

When looking at:
https://learn.microsoft.com/en-us/windows/win32/menurc/stringfileinfo-block
It seems that "040904E4" means that the values should be in U.S. English and in Multilingual character set (0x04E4 == 1252).
Thus shouldn't all the strings be prefixed by L here? Are we mixing character sets? Tagging @jenatali .

[yeah-its-gloria]

By default, all strings are treated as ASCII in either resource compiler, however MSVC's RC automatically turns strings that use codepoints beyond that set into UTF-16, which llvm-rc doesn't.

[bashbaug]

I filed #209 to track the question about string prefixes. I'm going to merge this now though, since this is definitely an improvement over what we have. Thank you for your contribution!