comment clean up

Signed-off-by: ashprice <gitcommit1@sl.ashprice.co.uk>

Author: ashprice

src/commands/CmdBurndown.cpp

@@ -68,7 +68,6 @@ class Bar {
 //
 // If you're familiar with the old version of the burndown code, note that
 // we no longer count deleted tasks except for peak calculation.
-// In the counting for completed tasks, note that we do it cumulatively.
 //
 //   e = entry
 //   s = start
@@ -135,8 +134,9 @@ class Chart {
   int _carryover_done{0};                  // Number of 'done' tasks prior to chart range
   char _period{};                          // D, W, M
   std::vector<time_t> _peak_day_epochs{};  // All consecutive day epochs (for peak range)
-  std::vector<int> _peak_diff{};           // Day-granular difference array (sweep-line)
-  std::unordered_map<time_t, size_t> _peak_day_index{};  // day-epoch → _peak_diff index
+  std::vector<int> _peak_diff{};           // Difference array for peak counting,
+                                           // quantized by day
+  std::unordered_map<time_t, size_t> _peak_day_index{};  // a map of per-day epochs to _peak_diff
   time_t _peak_day{};                                    // Day of highest pending peak
   int _peak_count{0};                                    // Corresponding peak pending count
   int _current_count{0};                                 // Current count of tasks without end date
@@ -554,7 +554,7 @@ Datetime Chart::increment(const Datetime& input, char period) {
 
 ////////////////////////////////////////////////////////////////////////////////
 // Build the epoch range used for peak counting.  The peak is always quantized
-// by day regardless of chart mode..
+// by day regardless of chart mode.
 void Chart::buildPeakRange(time_t earliest_day, time_t latest_day) {
   _peak_diff.clear();
   _peak_day_epochs.clear();