gh-120635: Avoid leaking processes in test_pyrepl (#120676)

If the child process takes longer than SHORT_TIMEOUT seconds to
complete, kill the process but then wait until it completes with no
timeout to not leak child processes.

diff --git a/Lib/test/test_pyrepl/test_pyrepl.py b/Lib/test/test_pyrepl/test_pyrepl.py
index 41ba5959a1ec34ee614652a07e96550cc7ae6abe..adc55f28f08a1e4e912b98a2aef5c38acf1a90e1 100644 (file)
--- a/Lib/test/test_pyrepl/test_pyrepl.py
+++ b/Lib/test/test_pyrepl/test_pyrepl.py
@@ -890,5 +890,5 @@ class TestMain(TestCase):
             exit_code = process.wait(timeout=SHORT_TIMEOUT)
         except subprocess.TimeoutExpired:
             process.kill()
-            exit_code = process.returncode
+            exit_code = process.wait()
         return "\n".join(output), exit_code