l: fix "total" line suppression on FreeBSD

FreeBSD 13 was seen to omit the "total" line
when -l was not supplied, so supply that
to ensure we get the correct total message to elide.

Author: pixelb

scripts/l

@@ -142,7 +142,7 @@ if [ "$color_when" ]; then
   fi
 fi
 # Get locale total string to match on
-total=`$ls -s $color_never / | sed 's/\([^ ]*\).*/\1/;q'`
+total=`$ls -sl $color_never / | sed 's/\([^ ]*\).*/\1/;q'`
 
 # Use these options if available
 $ls --group-directories-first -d . >/dev/null 2>&1 && gdf=--group-directories