.NET API Review

[rham]

47:51 FWIW, the screenshot you're taking a look at currently was simply to demonstrate that I was getting the CA2017 as expected when having the case of "too many params" for the provided message template. This coupled with the lack of an analyzer warning when using a badly formed message template like `"test {foo}}", nameof(foo)` (note extra brace) was the reasoning behind submitting the analyzer request