--- isolated-functions.sh.orig	2010-03-13 10:43:55.000000000 +0100
+++ isolated-functions.sh	2010-03-13 10:47:29.000000000 +0100
@@ -419,7 +419,7 @@ set_colors() {
 
 	# Now, ${ENDCOL} will move us to the end of the
 	# column;  irregardless of character width
-	ENDCOL=$'\e[A\e['${COLS}'C'
+	ENDCOL=$'\e[A\e['$(( COLS - 1 ))'C'
 	if [ -n "${PORTAGE_COLORMAP}" ] ; then
 		eval ${PORTAGE_COLORMAP}
 	else