d.barscale: update pictures in manual to state without north arrow symbol

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@68947 15284696-431f-4ddb-bdfa-cd5b030d7da7

display/d.barscale/thumbnails/README

@@ -1,6 +1,7 @@
-How to generate new scale bar thumbnail
-=======================================
-Expects North Carolina dataset. The thumbnail height should be 24 px.
+# How to generate new scale bar thumbnail
+# =======================================
+# Expects North Carolina dataset. The thumbnail height should be 24 px.
+# The expected scale bar with is 101 (no more than 110).
 
 
 export GRASS_RENDER_IMMEDIATE=png
@@ -13,9 +14,9 @@ for STYLE in classic line solid hollow full_checker part_checker mixed_checker t
 do
 	echo ${STYLE}
 	export GRASS_RENDER_FILE=${STYLE}.png
-	d.barscale style=${STYLE} at=20,20
+	d.barscale -t style=${STYLE} at=20,20 segment=5
 	mogrify -trim ${STYLE}.png
 	identify -format "%[fx:w]x%[fx:h]" ${STYLE}.png
-	convert ${STYLE}.png -gravity center -background white -extent 170x24  ${STYLE}.png
+	convert ${STYLE}.png -gravity center -background white -extent 110x24  ${STYLE}.png
 	optipng -o5 ${STYLE}.png ${STYLE}.png --quiet
 done