message: ToHwtStm: rm ", " after label
diff: from hdlConvertor.hdlAst import HdlCall, HdlStmIf, HdlStmBlock, HdlStmAssign
  -from hdlConvertor.to.basic_hdl_sim_model.expr import ToBasicHdlSimModelExpr
  from hdlConvertor.to.hdlUtils import Indent, iter_with_last
  from hdlConvertor.to.hwt.expr import ToHwtExpr
  @@ -15,7 +14,7 @@ class ToHwtStm(ToHwtExpr):
  w("# ")
  if o.labels:
  w(o.labels[0])
  - w(", ")
  + # w(", ")
  #w("sens: ")
  #if o.sensitivity:
  # for last, s in iter_with_last(o.sensitivity):
  