examples/dot/cluster.dot in ruby-graphviz-0.9.15 vs examples/dot/cluster.dot in ruby-graphviz-0.9.16

- old
+ new

@@ -1,6 +1,5 @@ digraph G { - subgraph cluster_0 { style=filled; color=lightgrey; node [style=filled,color=white]; a0 -> a1; \ No newline at end of file