Bash truncation line count off by 1

```bash
pi --no-extensions 'Use the bash tool exactly once: for i in $(seq 1 4000); do printf '\''line-%04d\n'\'' "$i"; done'
```

Shows 4001 lines:

```text
...
[Showing lines 2002-4001 of 4001. Full output: /tmp/pi-bash-9db6502f95de3257.log]
```

But the command only omits 4000 lines:

```bash
for i in $(seq 1 4000); do printf 'line-%04d\n' "$i"; done | tee /tmp/pi-lines.txt | wc -l
=> 4000
```
