janitor - fix ~20 -Wunused-value all from one macro
janitor - fix ~20 -Wunused-value all from one macro

ellson/graphviz,ellson/graphviz,ellson/graphviz,ellson/graphviz,ellson/graphviz,ellson/graphviz,ellson/graphviz,ellson/graphviz,ellson/graphviz,ellson/graphviz,ellson/graphviz