message: Fix off-by-one in toolstate breakage week start.
diff: @@ -15,7 +15,7 @@ const addRelease = (kind, incr, tools_week) => {
  if (tools_week === true) {
  const noBreakagesTo = releaseDate.clone().day(2);
  - const noBreakagesFrom = noBreakagesTo.clone().subtract(1, 'week');
  + const noBreakagesFrom = noBreakagesTo.clone().subtract(6, 'day');
  const toDate = noBreakagesTo.format(dateFormat);
  const fromDate = noBreakagesFrom.format(dateFormat);
  