message: Monitoring: Fix layout of Silence form start / end time inputs
  Layout was broken by the tooltip wrapper being changed from `block` to
  `inline-block`.
diff: @@ -678,13 +678,15 @@ const toISODate = (dateStr: string): string => {
  const Text = props => <input {...props} type="text" className="form-control form-control--silence-text" />;
  -const Datetime = props => <Tooltip content={[<span className="co-nowrap" key="co-timestamp">{toISODate(props.value)}</span>]}>
  +const Datetime = props => <div>
  + <Tooltip content={[<span className="co-nowrap" key="co-timestamp">{toISODate(props.value)}</span>]}>
  <Text
  {...props}
  pattern="\d{4}/(0[1-9]|1[012])/(0[1-9]|[12][0-9]|3[01]) ([01]\d|2[0-3]):[0-5]\d(:[0-5]\d)?"
  placeholder="YYYY/MM/DD hh:mm:ss"
  />
  -</Tooltip>;
  + </Tooltip>
  +</div>;
  class SilenceForm_ extends SafetyFirst<SilenceFormProps, SilenceFormState> {
  constructor(props) {
  