[librsvg] Fix crash in rsvg_filter_blend.

[Hiroyuki Ikezoe <hiikezoe src gnome org>]

commit 7934d42365202d67dfc5fdc31301a40d05077e67
Author: Hiroyuki Ikezoe <hiikezoe gnome org>
Date:   Tue Apr 20 19:49:01 2010 +0900

    Fix crash in rsvg_filter_blend.
    
    Fix for bug #616187.

 rsvg-filter.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/rsvg-filter.c b/rsvg-filter.c
index 0f82caa..d92e928 100644
--- a/rsvg-filter.c
+++ b/rsvg-filter.c
@@ -746,7 +746,7 @@ rsvg_filter_blend (RsvgFilterPrimitiveBlendMode mode, GdkPixbuf * in, GdkPixbuf
     if (boundarys.x0 < 0)
         boundarys.x0 = 0;
     if (boundarys.y0 < 0)
-        boundarys.y1 = 0;
+        boundarys.y0 = 0;
     if (boundarys.x1 >= width)
         boundarys.x1 = width;
     if (boundarys.y1 >= height)