prSt property
states. PLAN: many levels of flow-printing control. DO:print howTo mediate these to xPrint?
Implementation
Map<String, bool> prSt = {
'flow': false, // false prevents all "flow" printing via flow.fServe();
// Shorten output 2 screens.
'buf': false, // DO:print controls bufPrint
'info': false,
'help': false,
'bug': false,
'test': false,
'msg': false,
'dev': false,
'header': false,
'footer': false,
'state': false, // state
};