I had a hunch I was going to run into this problem:

```
std\algorithm.d(4256): Error: function std.algorithm.stripLeft!(string, char).stripLeft.pred!().pred i
s a nested function and cannot be accessed from std.algorithm.find!(pred, string).find
```

This is for the first `stripLeft` overload when I use the inner `pred2` template. The second overload does work with `not!pred` though.