rem: var rv = ""; 
add: var rv = new Array(); 
context: function keys (o){    var rv = "";        for (var p in o)        rv += rv ? ", " + p : p;    return rv;    }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/b4eb7b1f6889fbae4feaffd347d4a5a91b4aae44/utils.js/clean/extensions/irc/js/lib/utils.js