restored original create file instead of append

file.go

@@ -14,7 +14,7 @@ func file(filename string, create bool) (*os.File, error) {
 		var file *os.File
 		var err error
 		if create {
-			file, err = os.OpenFile(filename, os.O_RDWR|os.O_APPEND, 0660)
+			file, err = os.Create(filename)
 		} else {
 			file, err = os.Open(filename)
 		}

report.go

@@ -45,6 +45,8 @@ func report(reporter, input, output string) error {
 		results := vegeta.Results{}
 		if err := results.Decode(in); err != nil {
 			return err
+		} else {
+			log.Printf("Number of results: %d", len(results))
 		}
 		all = append(all, results...)
 	}