From b91096c615fcb4d82f7d3cc21d8e19fde52e6ef5 Mon Sep 17 00:00:00 2001
From: "James R. Barlow" <james@purplerock.ca>
Date: Sat, 28 Aug 2021 02:11:33 -0700
Subject: [PATCH] hoctransform: fix deprecation warning

---
 src/ocrmypdf/hocrtransform.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ocrmypdf/hocrtransform.py b/src/ocrmypdf/hocrtransform.py
index ea91b673..86145358 100755
--- a/src/ocrmypdf/hocrtransform.py
+++ b/src/ocrmypdf/hocrtransform.py
@@ -349,7 +349,7 @@ class HocrTransform:
         interword_spaces: bool,
         show_bounding_boxes: bool,
     ):
-        if not line:
+        if line is not None:
             return
         pxl_line_coords = self.element_coordinates(line)
         line_box = self.pt_from_pixel(pxl_line_coords)