Add non 0 exit code for missing jump targets (#5500)
Add non 0 exit code for missing jump targets (#5500)

This allows for the user to combine the jump command with something else. In my example cd and jump are now combined like this:

```bash
jumpcd() {
        jump $1 > /dev/null || cd $1
}
alias cd="jumpcd"
```
aaronbieber/oh-my-zsh,aaronbieber/oh-my-zsh