[gnumeric] Introspection fix.

[Morten Welinder <mortenw src gnome org>]

commit 4a118b79fa14ef9805ef29c065cb5d9087625bfe
Author: Morten Welinder <terra gnome org>
Date:   Sat Mar 6 20:45:17 2021 -0500

    Introspection fix.

 src/sheet-style.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/sheet-style.c b/src/sheet-style.c
index ecf406ee5..55e2f1bbc 100644
--- a/src/sheet-style.c
+++ b/src/sheet-style.c
@@ -1370,7 +1370,7 @@ sheet_style_set_pos (Sheet *sheet, int col, int row,
  * sheet_style_default:
  * @sheet:
  *
- * Returns a reference to default style for a sheet.
+ * Returns: (transfer full): default style for the sheet.
  **/
 GnmStyle *
 sheet_style_default (Sheet const *sheet)