message: Update testSetup comment for shouldThrow
diff: @@ -274,7 +274,7 @@ export const unexpectedResult: SfdxError = new SfdxError('This code was expected
  * Just do this
  *
  * try {
  - * await shouldThrowAsync(call()); // If this succeeds unexpectedResultError is thrown.
  + * await shouldThrow(call()); // If this succeeds unexpectedResultError is thrown.
  * } catch(e) {
  * ...
  * }
  