Strict only applies to Digraphs

[etherealmachine]

Is it intended that the strict option only applies to Digraphs? See

Ruby-Graphviz/lib/graphviz.rb

Line 522 in c3be805

xStict = ((@strict && @oGraphType == "digraph") ? "strict " : "")

.

The docs at https://graphviz.org/doc/info/lang.html seem to suggest that strict graph is also valid.