[LyX/master] Fixup 7acfbe0fccc7: forgot to change one location

[Jean-Marc Lasgouttes]

commit c96d3a03400893f440dca7e68ed87bd70bea0b39
Author: Jean-Marc Lasgouttes <lasgouttes at lyx.org>
Date:   Thu Jun 6 17:27:24 2024 +0200

    Fixup 7acfbe0fccc7: forgot to change one location
---
 src/RowPainter.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/RowPainter.cpp b/src/RowPainter.cpp
index b8c0a67b5e..19d83c13a3 100644
--- a/src/RowPainter.cpp
+++ b/src/RowPainter.cpp
@@ -313,7 +313,7 @@ void RowPainter::paintAppendix() const
 	if (par_.params().startOfAppendix())
 		y += 2 * defaultRowHeight();
 
-	pi_.pain.line(1, y, 1, yo_ + row_.height(), Color_appendix);
+	pi_.pain.line(1, y, 1, yo_ + row_.descent(), Color_appendix);
 	pi_.pain.line(tm_.width() - 2, y, tm_.width() - 2, yo_ + row_.descent(), Color_appendix);
 }