stabletailgraph: omit uninteresting linear parts in test log
The test uses tags for the nodes of interest.
There is no need to print the linear parts which exist only to force the rank.
[build-system]
requires = ["setuptools", "wheel"]
[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
'''
skip-string-normalization = true
quiet = true