message: rename response-time sparkline legend labels to be consistent with k-charted
diff: @@ -330,28 +330,28 @@ export default class SummaryPanelEdge extends React.Component<SummaryPanelPropTy
  );
  rtAvg = this.getNodeDataPoints(
  histograms.request_duration.avg,
  - 'Average',
  + 'avg',
  sourceMetricType,
  destMetricType,
  sourceData
  );
  rtMed = this.getNodeDataPoints(
  histograms.request_duration['0.5'],
  - 'Median',
  + 'p50',
  sourceMetricType,
  destMetricType,
  sourceData
  );
  rt95 = this.getNodeDataPoints(
  histograms.request_duration['0.95'],
  - '95th',
  + 'p95',
  sourceMetricType,
  destMetricType,
  sourceData
  );
  rt99 = this.getNodeDataPoints(
  histograms.request_duration['0.99'],
  - '99th',
  + 'p99',
  sourceMetricType,
  destMetricType,
  sourceData
  