rem: pfx = pfx.substr (0, c); 
add: pfx = pfx.substr(0, c); 
context: function getCommonPfx (list){    var pfx = list[0];    var l = list.length;        for (var i = 0; i < l; i++)    {        for (var c = 0; c < pfx.length; ++c)        {            if (c >= list[i].length)            {                pfx = pfx.substr (0, c);                break;            }            else            {                if (pfx[c] != list[i][c])                    pfx = pfx.substr (0, c);            }        }    }    return pfx;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/d84f82bf3e11bd09e70e1036662b0018f8834acc/utils.js/buggy/extensions/irc/js/lib/utils.js