[gtk] gsktransform: Fix documentation comment

[Timm Bäder <baedert src gnome org>]

commit 6c90d3a1b632b0f156b4d54786af096591e1aa46
Author: Timm Bäder <mail baedert org>
Date:   Wed Aug 21 10:56:20 2019 +0200

    gsktransform: Fix documentation comment
    
    There is no @m.

 gsk/gsktransform.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gsk/gsktransform.c b/gsk/gsktransform.c
index 5d780d3cfc..3ab7d1f3ec 100644
--- a/gsk/gsktransform.c
+++ b/gsk/gsktransform.c
@@ -1667,8 +1667,8 @@ gsk_transform_new (void)
  * @out_rect: (out caller-allocates): return location for the bounds
  *   of the transformed rectangle
  *
- * Transforms a #graphene_rect_t using the given matrix @m. The
- * result is the bounding box containing the coplanar quad.
+ * Transforms a #graphene_rect_t using the given transform @self.
+ * The result is the bounding box containing the coplanar quad.
  **/
 void
 gsk_transform_transform_bounds (GskTransform          *self,