[gegl] clearer comments

[Nicolas Robidoux <nrobidoux src gnome org>]

commit e013153556576926040c819d5ded1f205b7c8fa7
Author: Nicolas Robidoux <nrobidoux git gnome org>
Date:   Tue Dec 4 21:02:18 2012 -0500

    clearer comments

 operations/transform/transform-core.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/operations/transform/transform-core.c b/operations/transform/transform-core.c
index c8ce901..467ce2e 100644
--- a/operations/transform/transform-core.c
+++ b/operations/transform/transform-core.c
@@ -333,7 +333,7 @@ gegl_transform_bounding_box (const gdouble *points,
   /*
    * Take the points defined by consecutive pairs of gdoubles as
    * absolute positions, that is, positions in the coordinate system
-   * with origin at the center of the pixel with index (0,0).
+   * with origin at the center of the pixel with index [0][0].
    *
    * Compute from these the smallest rectangle of pixel indices such
    * that the absolute positions of the four outer corners of the four
@@ -521,7 +521,7 @@ gegl_transform_detect (GeglOperation *operation,
 {
   /*
    * detect figures out which pixel in the input closely corresponds
-   * to the pixel with index (x,y) in the output.
+   * to the pixel with index [x][y] in the output.
    */
   OpTransform *transform = OP_TRANSFORM (operation);
   GeglNode    *source_node =