minor doc

diff --git a/MagickCore/shear.c b/MagickCore/shear.c
index 1d76dd109d3080cc7cefb9d99989ec02d1a03a6b..d8b7881d9bcb088fe3dde510af97bda39a423a79 100644 (file)
--- a/MagickCore/shear.c
+++ b/MagickCore/shear.c
@@ -196,9 +196,10 @@ static MagickBooleanType CropToFitImage(Image **image,
 %  defined, while the amount the image is to be deskewed, in degrees is also
 %  saved as the artifact "deskew:angle".
 %
-%  If the artifact "deskew:auto-crop" is defined with 'offset limits' used to
-%  determine the images background color, the image will be automatically
-%  cropped of the excess background.
+%  If the artifact "deskew:auto-crop" is given the image will be automatically
+%  cropped of the excess background.  The value is the border width of all
+%  pixels around the edge that will be used to determine an average border
+%  color for the automatic trim.
 %
 %  The format of the DeskewImage method is:
 %