gfileutils: Mark the return value from g_path_skip_root() as nullable

It returns NULL for non-absolute paths.

https://bugzilla.gnome.org/show_bug.cgi?id=719966

diff --git a/glib/gfileutils.c b/glib/gfileutils.c
index 0db07c5..31a84cf 100644 (file)
--- a/glib/gfileutils.c
+++ b/glib/gfileutils.c
@@ -2117,7 +2117,7 @@ g_path_is_absolute (const gchar *file_name)
  * i.e. after the "/" in UNIX or "C:\" under Windows. If @file_name
  * is not an absolute path it returns %NULL.
  *
- * Returns: a pointer into @file_name after the root component
+ * Returns: (nullable): a pointer into @file_name after the root component
  */
 const gchar *
 g_path_skip_root (const gchar *file_name)