graph/formats/dot/testdata: don't clone the full history
@@ -98,7 +98,7 @@ fetch: graphviz
rm -rf graphviz
graphviz:
- git clone https://github.com/ellson/graphviz.git
+ git clone --depth=1 https://github.com/ellson/graphviz.git
clean:
rm -rf *.dot input output
