[LyX/master] Try to fix test error reported by Kornel.

[Pavel Sanda]

commit 17c18600439f301302a4772a3e9348fd1bcdbfa4
Author: Pavel Sanda <sanda at lyx.org>
Date:   Sun Sep 6 17:12:16 2026 +0200

    Try to fix test error reported by Kornel.
---
 development/batchtests/compare_tests/long_doc/diffs.expected.lyx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/development/batchtests/compare_tests/long_doc/diffs.expected.lyx b/development/batchtests/compare_tests/long_doc/diffs.expected.lyx
index 71f4f83dbf..a6f0de0add 100644
--- a/development/batchtests/compare_tests/long_doc/diffs.expected.lyx
+++ b/development/batchtests/compare_tests/long_doc/diffs.expected.lyx
@@ -1065,7 +1065,7 @@ Some of you may have printed out the manuals.
  which looks like this:
  
 \begin_inset Graphics
-	filename /lib/doc/clipart/footnote.png
+	filename ../../../../lib/doc/clipart/footnote.png
 	scale 95
 
 \end_inset
@@ -1094,7 +1094,7 @@ In the printed manuals,
  all cross-references appear as light-grey boxes like the following:
  
 \begin_inset Graphics
-	filename /lib/doc/clipart/reference.png
+	filename ../../../../lib/doc/clipart/reference.png
 	scale 95
 
 \end_inset