eval parens bug

```
eval day floor((($unixtime / 86400) + 4) % 7)
printbox %day
```

```
[Starting '~/Scripts/temp.cmd' at 03:56 PM]
[temp(2)]: eval day 0 + 4) % 7) = error
[temp(2)]: 0 + 4) % 7)
[temp(3)]: printbox error
*************
**  error  **
*************
```