Fix UncommunicativeVariableName in graphviz code
Fix UncommunicativeVariableName in graphviz code

dekz/rom,dcarral/rom,rom-rb/rom,jeremyf/rom,endash/rom,cored/rom,kwando/rom,pxlpnk/rom,rom-rb/rom,denyago/rom,rom-rb/rom,Snuff/rom,pdswan/rom,pvcarrera/rom,vrish88/rom