non-pkg: gofix -r error -force=error

R=golang-dev, iant, r, r
CC=golang-dev
https://golang.org/cl/5307066
diff --git a/doc/codelab/wiki/final-noerror.go b/doc/codelab/wiki/final-noerror.go
index b8edbee..69e1912 100644
--- a/doc/codelab/wiki/final-noerror.go
+++ b/doc/codelab/wiki/final-noerror.go
@@ -3,7 +3,6 @@
 import (
 	"http"
 	"io/ioutil"
-	"os"
 	"template"
 )
 
@@ -12,12 +11,12 @@
 	Body  []byte
 }
 
-func (p *Page) save() os.Error {
+func (p *Page) save() error {
 	filename := p.Title + ".txt"
 	return ioutil.WriteFile(filename, p.Body, 0600)
 }
 
-func loadPage(title string) (*Page, os.Error) {
+func loadPage(title string) (*Page, error) {
 	filename := title + ".txt"
 	body, err := ioutil.ReadFile(filename)
 	if err != nil {