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dot: improve output to work around GraphViz bug

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The related GraphViz issue is
https://gitlab.com/graphviz/graphviz/-/issues/2179

* spot/twaalgos/dot.cc: Avoid initial newline in title.
* NEWS: Mention the bug.
* tests/core/det.test, tests/core/dstar.test,
tests/core/neverclaimread.test, tests/python/automata-io.ipynb: Adjust
test cases.
This commit is contained in:
Alexandre Duret-Lutz 2022-01-11 22:19:20 +01:00
parent 78bcd9c453
commit 890423936f
6 changed files with 23 additions and 11 deletions
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4
tests/core/det.test
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@ -1,6 +1,6 @@
#!/bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2013-2021 Laboratoire de Recherche et Développement de
# Copyright (C) 2013-2022 Laboratoire de Recherche et Développement de
# l'Epita (LRDE).
#
# This file is part of Spot, a model checking library.
@ -113,7 +113,7 @@ run 0 ../ikwiad -x -DC 'GFa & XGFb' > out.tgba
cat >ex.tgba <<EOF
digraph "GFa & XGFb" {
rankdir=LR
label="\n[Büchi]"
label="[Büchi]"
labelloc="t"
node [shape="circle"]
I [label="", style=invis, width=0]