[gnome-software: 1/12] gs-app: Fix a typo and add annotations to a gtk-doc comment

[Phaedrus Leeds <mwleeds src gnome org>]

commit 9c4abdd5b96a860390efe5217619c4a730402a2a
Author: Philip Withnall <pwithnall endlessos org>
Date:   Thu Feb 18 23:34:33 2021 +0000

    gs-app: Fix a typo and add annotations to a gtk-doc comment
    
    Signed-off-by: Philip Withnall <pwithnall endlessos org>

 lib/gs-app.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/lib/gs-app.c b/lib/gs-app.c
index 4be4e3a7a..50918e44b 100644
--- a/lib/gs-app.c
+++ b/lib/gs-app.c
@@ -3589,7 +3589,7 @@ gs_app_set_metadata (GsApp *app, const gchar *key, const gchar *value)
  * Gets some metadata for the application.
  * Is is expected that plugins namespace any plugin-specific metadata.
  *
- * Returns: a string, or %NULL for unset
+ * Returns: (transfer none) (nullable): a variant, or %NULL for unset
  *
  * Since: 3.26
  **/