[mutter] cogl: Fix doc for _cogl_blit_framebuffer

[Jonas Ådahl <jadahl src gnome org>]

commit fc0ce11fcd997af12fc2253eeb37e03cebb5964f
Author: Pekka Paalanen <pekka paalanen collabora com>
Date:   Tue Apr 30 17:01:04 2019 +0300

    cogl: Fix doc for _cogl_blit_framebuffer
    
    Commit 38921701e533b7fda38a236cc45aec2ed3afef8a added explicit source and
    destination parameters. Fix the documentation to match.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/615

 cogl/cogl/cogl-framebuffer-private.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/cogl/cogl/cogl-framebuffer-private.h b/cogl/cogl/cogl-framebuffer-private.h
index 0c361e2be..59896ddf3 100644
--- a/cogl/cogl/cogl-framebuffer-private.h
+++ b/cogl/cogl/cogl-framebuffer-private.h
@@ -4,6 +4,7 @@
  * A Low Level GPU Graphics and Utilities API
  *
  * Copyright (C) 2007,2008,2009 Intel Corporation.
+ * Copyright (C) 2019 DisplayLink (UK) Ltd.
  *
  * Permission is hereby granted, free of charge, to any person
  * obtaining a copy of this software and associated documentation
@@ -374,9 +375,8 @@ _cogl_push_framebuffers (CoglFramebuffer *draw_buffer,
  * @width: Width of region to copy
  * @height: Height of region to copy
  *
- * This blits a region of the color buffer of the current draw buffer
- * to the current read buffer. The draw and read buffers can be set up
- * using _cogl_push_framebuffers(). This function should only be
+ * This blits a region of the color buffer of the source buffer
+ * to the destination buffer. This function should only be
  * called if the COGL_PRIVATE_FEATURE_OFFSCREEN_BLIT feature is
  * advertised. The two buffers must both be offscreen and have the
  * same format.