`Drop[]` 0 element  returns an error when it should not

## Description

`Drop[]` of the 0th element returns an error when it should not

## How to Reproduce

```
$ mathics -e 'Drop[{2}, 0]'
Drop::drop: Cannot drop positions 0 through Infinity in {2}.
Drop[{2}, 0]
```
## Expected output

```
{2}
```
## Additional context

Encountered while debugging Combinatorica V0.9.