What is the (slightly pejorative) term for checking the negative of a condition (rather than the positive which is often more readable):

e.g.

if(!someVar) {
  return null;
} else {
  return doSomethingInteresting();
}

instead of doing this (which is arguably more readable)

if(someVar) {
  return doSomethingInteresting();
} else {
  return null;
}

I vaguely remember there being a term for this; something in the same spirit as the term Yoda conditions.