String format should check number of args against placeholders to detect mismatches

[dbaeumer]

The place to check is here:

vscode-loader/src/nls.ts

Line 72 in cbe8f63

function _format(message: string, args: (string | number | boolean | undefined | null)[], env: Environment): string {

[alexdima]

@dbaeumer Do you want to look into doing this? I think you wrote the initial _format implementation.

[dbaeumer]

We are discussing whether @TylerLeonhardt takes over more so I asked him to look into it. Will assign to him for now.

[TylerLeonhardt]

I take a look at this next milestone probably.