rem: max = av; 
add: max = this.inputStream.available(); 
context: function fo_read(max){    if (!("inputStream" in this))        throw "file not open for reading.";    var av = this.inputStream.available();    if (typeof max == "undefined")        max = av;    if (!av)        return null;    var rv = this.inputStream.read(max);    return rv;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/b6063a28fbefe309a7e191934dbcc85a4ed1b36b/file-utils.js/buggy/extensions/irc/js/lib/file-utils.js