Fix comment

src/run/sample/repeat.js

@@ -13,7 +13,7 @@
 //  - So that `repeat` adjusts to slowdowns of the task (for example due to
 //    competing processes).
 //  - It makes the initial calibration phase shorter. This leads to more
-//    stable `high` and `stdev` stats.
+//    stable `max` and `stdev` stats.
 // When estimating `measureCost`, we should not use a repeat loop since
 // `measureCost` only happens once per repeat loop
 // Iterating the `repeat` loop adds a small duration, due to the duration to