[gedit] Improve doc of gedit_document_get_metadata()

[Sébastien Wilmet <swilmet src gnome org>]

commit 00f8d920378810a58dcdfc71c01338f59a179321
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Tue Aug 12 19:15:26 2014 +0200

    Improve doc of gedit_document_get_metadata()

 gedit/gedit-document.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gedit/gedit-document.c b/gedit/gedit-document.c
index 8cb8365..b8a9858 100644
--- a/gedit/gedit-document.c
+++ b/gedit/gedit-document.c
@@ -1598,7 +1598,7 @@ gedit_document_set_metadata (GeditDocument *doc,
  *
  * Gets the metadata assigned to @key.
  *
- * Returns: the value assigned to @key.
+ * Returns: the value assigned to @key. Free with g_free().
  */
 gchar *
 gedit_document_get_metadata (GeditDocument *doc,