From 18e31a63b66426fd9cb0e6833be40b643b31d510 Mon Sep 17 00:00:00 2001
From: tgruben <tgruben@gmail.com>
Date: Mon, 22 Feb 2021 11:42:48 -0600
Subject: [PATCH] Update roaring/roaring.go

Co-authored-by: Matthew Jaffee <matthew.jaffee@gmail.com>
---
 roaring/roaring.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/roaring/roaring.go b/roaring/roaring.go
index 37adfc2d5..39bdbc714 100644
--- a/roaring/roaring.go
+++ b/roaring/roaring.go
@@ -2282,7 +2282,7 @@ func (b *Bitmap) ImportRoaringBits(data []byte, clear bool, log bool, rowSize ui
 func (b *Bitmap) MergeRoaringRawIteratorIntoExists(itr RoaringIterator, rowSize uint64) error {
 
        if itr == nil {
-               return errors.New("bad roaring iterator, but don't know why")
+               return errors.New("nil RoaringIterator passed to MergeRoaringRawIteratorIntoExists")
        }
        var synthC Container
        importUpdater := func(oldC *Container, existed bool) (newC *Container, write bool) {