tests: fix spelling in test-topic-stack.t

8 jobs for topic/default/stack-test-spell in 6 minutes and 52 seconds (queued for 1 second)
Status Name Job ID Coverage
  Test
passed checks-py2 #163608

00:01:20

passed checks-py3 #163609

00:02:05

passed doc #163614

00:00:31

manual pytype #163607
allowed to fail manual
failed tests-py2-cext #163610

00:06:52

failed tests-py2-pure #163611

00:03:37

failed tests-py3-cext #163612

00:04:18

failed tests-py3-pure #163613

00:06:41

 
Name Stage Failure
failed
tests-py3-pure Test
Skipped test-check-setup-manifest.t: blacklisted
Skipped test-check-tag.t: blacklisted
Failed test-evolve-interrupted.t: output changed
Failed test-prev-next.t: output changed
# Ran 194 tests, 7 skipped, 2 failed.
python hash seed: 1090575835
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1
failed
tests-py3-cext Test
Skipped test-check-setup-manifest.t: blacklisted
Skipped test-check-tag.t: blacklisted
Failed test-evolve-interrupted.t: output changed
Failed test-prev-next.t: output changed
# Ran 194 tests, 7 skipped, 2 failed.
python hash seed: 2437760932
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1
failed
tests-py2-pure Test
Skipped test-check-setup-manifest.t: blacklisted
Skipped test-check-tag.t: blacklisted
Failed test-evolve-interrupted.t: output changed
Failed test-prev-next.t: output changed
# Ran 194 tests, 7 skipped, 2 failed.
python hash seed: 4292874182
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1
failed
tests-py2-cext Test
Skipped test-check-setup-manifest.t: blacklisted
Skipped test-check-tag.t: blacklisted
Failed test-evolve-interrupted.t: output changed
Failed test-prev-next.t: output changed
# Ran 194 tests, 7 skipped, 2 failed.
python hash seed: 1440452246
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1