update for 8.6.0 final release [build_translations]

Author: jmckenna

en/utilities/scalebar.txt

@@ -7,14 +7,21 @@
  scalebar
 *****************************************************************************
 
+ .. note::
+
+    MapServer supports only cartesian distances (straight-line distance measured
+    on a flat surface), it does not convert distances into an ellipsoidal 
+    distance (measured on spherical shape).
+
 Purpose
------------------------------------------------------------------------------
+-------
 
-Creates a scalebar from a mapfile. Output is either PNG or GIF depending 
-on what version of the GD library used.
+Creates a scalebar image from a mapfile. Output format of the image (such as 
+PNG, JPEG, etc.) depends on your defined :ref:`IMAGETYPE <imagetype>` in 
+your mapfile.
 
 Syntax
------------------------------------------------------------------------------
+------
 
 ::