message: Fix for issue 6100: incorrect shrinking logic in ResizeContext()
diff: @@ -195,7 +195,7 @@ class ResizeContext {
  if (delta_ > 0)
  buf_.insert(buf_.begin() + start, delta_, 0);
  else
  - buf_.erase(buf_.begin() + start, buf_.begin() + start - delta_);
  + buf_.erase(buf_.begin() + start + delta_, buf_.begin() + start);
  }
  // Check if the range between first (lower address) and second straddles
  