[goocanvas] added missing colon

[Damon Chaplin <damon src gnome org>]

commit 3bc3f44e364173baaf8deb653cfbee8d327f225e
Author: Damon Chaplin <Damon A Chaplin gmail com>
Date:   Thu Dec 15 21:03:55 2016 +0000

    added missing colon

 src/goocanvas.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/goocanvas.c b/src/goocanvas.c
index e3232d2..c40bba2 100644
--- a/src/goocanvas.c
+++ b/src/goocanvas.c
@@ -2871,7 +2871,7 @@ goo_canvas_draw (GtkWidget      *widget,
  * goo_canvas_render:
  * @canvas: a #GooCanvas.
  * @cr: a cairo context.
- * @bounds (allow-none): the area to render, or %NULL to render the entire canvas.
+ * @bounds: (allow-none): the area to render, or %NULL to render the entire canvas.
  * @scale: the scale to compare with each item's visibility
  * threshold to see if they should be rendered. This only affects items that
  * have their visibility set to %GOO_CANVAS_ITEM_VISIBLE_ABOVE_THRESHOLD.