[gtksourceview] Doc: fix GISCAN warning

[Sébastien Wilmet <swilmet src gnome org>]

commit 99af1adb3cb52d65a8e796d98a3c0f3710ba4523
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat May 18 23:28:57 2013 +0200

    Doc: fix GISCAN warning
    
    Incorrect number of parameters.

 gtksourceview/gtksourcebuffer.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtksourceview/gtksourcebuffer.c b/gtksourceview/gtksourcebuffer.c
index 6637283..0b2eff3 100644
--- a/gtksourceview/gtksourcebuffer.c
+++ b/gtksourceview/gtksourcebuffer.c
@@ -336,6 +336,7 @@ gtk_source_buffer_class_init (GtkSourceBufferClass *klass)
        /**
         * GtkSourceBuffer::source-mark-updated:
         * @buffer: the buffer that received the signal
+        * @mark: the #GtkSourceMark
         *
         * The ::source_mark_updated signal is emitted each time
         * a mark is added to, moved or removed from the @buffer.