message: correct documentation of --cap-coverage
diff: @@ -294,9 +294,7 @@ void Parameters::usage(char** argv) {
  << " Downsample per-sample coverage to this level if greater than this coverage." << endl
  << " default: no limit" << endl
  << " -g --cap-coverage N" << endl
  - << " Do not process alignments when we have already seen N previous alignments" << endl
  - << " with the same ending position. This implements an order-dependent heuristic" << endl
  - << " downsampling to limit memory usage in very high coverage regions." << endl
  + << " Skip processing of alignments overlapping positions with coverage >N." << endl
  << " default: no limit" << endl
  << endl
  << "population priors:" << endl
  