[gegl] JPEG saved with wrong width height if buffer origin is non-zero

[Øyvind "pippin" Kolås <ok src gnome org>]

commit f5ac56347085e4d2852e662df167e065b9a45611
Author: Brian Stafford <contact brianstafford info>
Date:   Tue Mar 12 17:05:31 2019 +0000

    JPEG saved with wrong width height if buffer origin is non-zero

 operations/external/jpg-save.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/operations/external/jpg-save.c b/operations/external/jpg-save.c
index 2645a2601..c90f49c44 100644
--- a/operations/external/jpg-save.c
+++ b/operations/external/jpg-save.c
@@ -243,8 +243,8 @@ export_jpg (GeglOperation               *operation,
 
   src_x = result->x;
   src_y = result->y;
-  width = result->width - result->x;
-  height = result->height - result->y;
+  width = result->width;
+  height = result->height;
 
   cinfo.image_width = width;
   cinfo.image_height = height;