[gcab] Fix Warning: GCab: gcab_file_get_date: invalid return annotation

[Marc-Andre Lureau <malureau src gnome org>]

commit 3e1b3638be266296687e14f27833ecbd907cc3b7
Author: Marc-André Lureau <marcandre lureau redhat com>
Date:   Wed Mar 1 20:49:56 2017 +0400

    Fix Warning: GCab: gcab_file_get_date: invalid return annotation
    
    Signed-off-by: Marc-André Lureau <marcandre lureau redhat com>

 libgcab/gcab-file.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/libgcab/gcab-file.c b/libgcab/gcab-file.c
index b55fbb5..c650b36 100644
--- a/libgcab/gcab-file.c
+++ b/libgcab/gcab-file.c
@@ -180,9 +180,8 @@ gcab_file_get_size (GCabFile *self)
  * @file: a #GCabFile
  * @result: a #GTimeVal to return date
  *
- * Get the file date.
+ * Get the file date, in @result.
  *
- * Returns: the cabinet file date in @result
  * Since: 0.6
  **/
 void