Problem in geoserver: wrap_limit parameter doesn't work on GetLegendGraphic request

Hello,

I’m having an issue with a legend image that doesn’t display correctly when I specify a wrap_limit through the LEGEND_OPTIONS.

My request is this:
http://example.com/wms?REQUEST=GetLegendGraphic&SERVICE=WMS&SLD_VERSION=1.1.0&SCALE=13806470.132930014&VERSION=1.3.0&LEGEND_OPTIONS=wrap_limit :20;fontAntiAliasing:true;forceTitles:on;fontName:Selawik;fontSize:12;fontColor:0x666666;forceLabels:on&FORMAT=image/png&LAYER=IBAS&TRANSPARENT=true&

This doesn’t wraps the legend label with 20 pixels. Is this the correct way to use this parameter?