Extra blank line in pystack output

[godlygeek]

PyStack's output sometimes contains an extra blank line. For instance:

(venv) root@6cf9d18a89ec:/tmp# python -m http.server &
[1] 2940
(venv) root@6cf9d18a89ec:/tmp# Serving HTTP on 0.0.0.0 port 8000 (http://0.0.0.0:8000/) ...

(venv) root@6cf9d18a89ec:/tmp# kill -ABRT 2940
(venv) root@6cf9d18a89ec:/tmp# jobs
[1]+  Aborted                    (core dumped) python -m http.server
(venv) root@6cf9d18a89ec:/tmp# pystack core core
Using executable found in the core file: /tmp/venv/bin/python

Core file information:
state: R zombie: True niceness: 0
pid: 2940 ppid: 1 sid: 1
uid: 0 gid: 0 pgrp: 2940
executable: python arguments: python -m http.server

The process died due receiving signal SIGABRT sent by pid 1
Traceback for thread 2940 [] (most recent call last):
    (Python) File "<frozen runpy>", line 198, in _run_module_as_main
    (Python) File "<frozen runpy>", line 88, in _run_code
    (Python) File "/usr/lib/python3.14/http/server.py", line 1432, in <module>
        test(

    (Python) File "/usr/lib/python3.14/http/server.py", line 1359, in test
        httpd.serve_forever()
    (Python) File "/usr/lib/python3.14/socketserver.py", line 235, in serve_forever
        ready = selector.select(poll_interval)
    (Python) File "/usr/lib/python3.14/selectors.py", line 398, in select
        fd_event_list = self._selector.poll(timeout)

Identify why the extra blank line is showing up and fix it.