[gtk] transform: Fix a wrong annotation

[Matthias Clasen <matthiasc src gnome org>]

commit 06df7e6f2c555c7a84c42d98f650238b871a78e0
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Feb 23 23:21:32 2019 -0500

    transform: Fix a wrong annotation
    
    It is (out caller-allocates), not (out) (caller-allocates).

 gtk/gtktransform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/gtktransform.c b/gtk/gtktransform.c
index 7580a3476b..f114b69bfe 100644
--- a/gtk/gtktransform.c
+++ b/gtk/gtktransform.c
@@ -979,7 +979,7 @@ gtk_transform_get_next (GtkTransform *self)
 /**
  * gtk_transform_to_matrix:
  * @self: (allow-none): a #GtkTransform
- * @out_matrix: (out) (caller-allocates): The matrix to set
+ * @out_matrix: (out caller-allocates): The matrix to set
  *
  * Computes the actual value of @self and stores it in @out_matrix.
  * The previous value of @out_matrix will be ignored.