message: VSCode returns null instead of undefined when there's no value, which made other comparisons fail :/
diff: @@ -37,7 +37,7 @@ export class Options {
  const path = Options.readPathOption(csharpConfig, omnisharpConfig);
  const useGlobalMono = Options.readUseGlobalMonoOption(omnisharpConfig, csharpConfig);
  - const monoPath = omnisharpConfig.get<string>('monoPath', undefined);
  + const monoPath = omnisharpConfig.get<string>('monoPath', undefined) || undefined;
  const waitForDebugger = omnisharpConfig.get<boolean>('waitForDebugger', false);
  