message: Screen: Release-build compilation fixes (as warnings are errors).
diff: @@ -394,12 +394,12 @@ void Screen::Buffer::verifyState() const
  assert(numLines_ == lines.size());
  // verify cursor positions
  - auto const clampedCursor = clampCoordinate(cursor);
  + [[maybe_unused]] auto const clampedCursor = clampCoordinate(cursor);
  assert(cursor == clampedCursor);
  // verify iterators
  - auto const line = next(begin(lines), cursor.row - 1);
  - auto const col = next(begin(*line), cursor.column - 1);
  + [[maybe_unused]] auto const line = next(begin(lines), cursor.row - 1);
  + [[maybe_unused]] auto const col = next(begin(*line), cursor.column - 1);
  assert(line == currentLine);
  assert(col == currentColumn);
  