rem: if(!dirPath || !fileName){ dump("Missing path argument . . . \n\n"); return; 
add: if(!dirPath || !fileName) { dump("Missing path argument . . . \n\n"); return false; 
context: append : function (dirPath, fileName) {    if(!dirPath || !fileName){        dump("Missing path argument . . . \n\n");        return;    }    //dump("\n\n**** Checking to see if the directory exists "+fileName+"****\n\n");    this.exists(dirPath);    try{     //if(!this.fileInst)        this.fileInst           = new FilePath(dirPath);        fileAppended            = this.fileInst.append(fileName);        fileAppended            = this.fileInst.path;    }    catch(error) { dump("**** ERROR:"+error+"\n\n"); }    //dump("File \""+dirPath+"\" appended = "+fileAppended+"\n\n");    return fileAppended;},
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/46e7c638c4651d5af5b1ea9556848414e43314af/io.js/buggy/xpcom/tests/utils/io.js