[gtksourceview] Completion: better document block_interactive()

[Sébastien Wilmet <swilmet src gnome org>]

commit f0b10054798fbac6242e26c385c16ab1a38aa70a
Author: Christian Hergert <christian hergert me>
Date:   Sat Sep 28 19:37:17 2013 +0200

    Completion: better document block_interactive()

 gtksourceview/gtksourcecompletion.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gtksourceview/gtksourcecompletion.c b/gtksourceview/gtksourcecompletion.c
index 9257f3d..75b7471 100644
--- a/gtksourceview/gtksourcecompletion.c
+++ b/gtksourceview/gtksourcecompletion.c
@@ -2773,6 +2773,10 @@ gtk_source_completion_move_window (GtkSourceCompletion *completion,
  * completion when inserting or deleting text from the buffer associated with
  * the completion. Use gtk_source_completion_unblock_interactive() to enable
  * interactive completion again.
+ *
+ * This function may be called multiple times. It will continue to block
+ * interactive completion until gtk_source_completion_unblock_interactive()
+ * has been called the same number of times.
  */
 void
 gtk_source_completion_block_interactive (GtkSourceCompletion *completion)