code review 5294074: src/pkg/[n-z]*: gofix -r error

src/pkg/net/textproto/reader.go

Index: src/pkg/net/textproto/reader.go
===================================================================
--- a/src/pkg/net/textproto/reader.go
+++ b/src/pkg/net/textproto/reader.go
@@ -9,7 +9,6 @@
 	"bytes"
 	"io"
 	"io/ioutil"
-	"os"
 	"strconv"
 	"strings"
 )
@@ -32,13 +31,13 @@
 
 // ReadLine reads a single line from r,
 // eliding the final \n or \r\n from the returned string.
-func (r *Reader) ReadLine() (string, os.Error) {
+func (r *Reader) ReadLine() (string, error) {
 	line, err := r.readLineSlice()
 	return string(line), err
 }
 
 // ReadLineBytes is like ReadLine but returns a []byte instead of a string.
-func (r *Reader) ReadLineBytes() ([]byte, os.Error) {
+func (r *Reader) ReadLineBytes() ([]byte, error) {
 	line, err := r.readLineSlice()
 	if line != nil {
 		buf := make([]byte, len(line))
@@ -48,7 +47,7 @@
 	return line, err
 }
 
-func (r *Reader) readLineSlice() ([]byte, os.Error) {
+func (r *Reader) readLineSlice() ([]byte, error) {
 	r.closeDot()
 	var line []byte
 	for {
@@ -87,7 +86,7 @@
 //
 // A line consisting of only white space is never continued.
 //
-func (r *Reader) ReadContinuedLine() (string, os.Error) {
+func (r *Reader) ReadContinuedLine() (string, error) {
 	line, err := r.readContinuedLineSlice()
 	return string(line), err
 }
@@ -108,7 +107,7 @@
 
 // ReadContinuedLineBytes is like ReadContinuedLine but
 // returns a []byte instead of a string.
-func (r *Reader) ReadContinuedLineBytes() ([]byte, os.Error) {
+func (r *Reader) ReadContinuedLineBytes() ([]byte, error) {
 	line, err := r.readContinuedLineSlice()
 	if line != nil {
 		buf := make([]byte, len(line))
@@ -118,7 +117,7 @@
 	return line, err
 }
 
-func (r *Reader) readContinuedLineSlice() ([]byte, os.Error) {
+func (r *Reader) readContinuedLineSlice() ([]byte, error) {
 	// Read the first line.
 	line, err := r.readLineSlice()
 	if err != nil {
@@ -192,7 +191,7 @@
 	return line, err
 }
 
-func (r *Reader) readCodeLine(expectCode int) (code int, continued bool, message string, err os.Error) {
+func (r *Reader) readCodeLine(expectCode int) (code int, continued bool, message string, err error) {
 	line, err := r.ReadLine()
 	if err != nil {
 		return
@@ -200,7 +199,7 @@
 	return parseCodeLine(line, expectCode)
 }
 
-func parseCodeLine(line string, expectCode int) (code int, continued bool, message string, err os.Error) {
+func parseCodeLine(line string, expectCode int) (code int, continued bool, message string, err error) {
 	if len(line) < 4 || line[3] != ' ' && line[3] != '-' {
 		err = ProtocolError("short response: " + line)
 		return
@@ -235,7 +234,7 @@
 //
 // An expectCode <= 0 disables the check of the status code.
 //
-func (r *Reader) ReadCodeLine(expectCode int) (code int, message string, err os.Error) {
+func (r *Reader) ReadCodeLine(expectCode int) (code int, message string, err error) {
 	code, continued, message, err := r.readCodeLine(expectCode)
 	if err == nil && continued {
 		err = ProtocolError("unexpected multi-line response: " + message)
@@ -265,7 +264,7 @@
 //
 // An expectCode <= 0 disables the check of the status code.
 //
-func (r *Reader) ReadResponse(expectCode int) (code int, message string, err os.Error) {
+func (r *Reader) ReadResponse(expectCode int) (code int, message string, err error) {
 	code, continued, message, err := r.readCodeLine(expectCode)
 	for err == nil && continued {
 		line, err := r.ReadLine()
@@ -314,7 +313,7 @@
 }
 
 // Read satisfies reads by decoding dot-encoded data read from d.r.
-func (d *dotReader) Read(b []byte) (n int, err os.Error) {
+func (d *dotReader) Read(b []byte) (n int, err error) {
 	// Run data through a simple state machine to
 	// elide leading dots, rewrite trailing \r\n into \n,
 	// and detect ending .\r\n line.
@@ -331,7 +330,7 @@
 		var c byte
 		c, err = br.ReadByte()
 		if err != nil {
-			if err == os.EOF {
+			if err == io.EOF {
 				err = io.ErrUnexpectedEOF
 			}
 			break
@@ -393,7 +392,7 @@
 		n++
 	}
 	if err == nil && d.state == stateEOF {
-		err = os.EOF
+		err = io.EOF
 	}
 	if err != nil && d.r.dot == d {
 		d.r.dot = nil
@@ -418,7 +417,7 @@
 // ReadDotBytes reads a dot-encoding and returns the decoded data.
 //
 // See the documentation for the DotReader method for details about dot-encoding.
-func (r *Reader) ReadDotBytes() ([]byte, os.Error) {
+func (r *Reader) ReadDotBytes() ([]byte, error) {
 	return ioutil.ReadAll(r.DotReader())
 }
 
@@ -426,17 +425,17 @@
 // containing the decoded lines, with the final \r\n or \n elided from each.
 //
 // See the documentation for the DotReader method for details about dot-encoding.
-func (r *Reader) ReadDotLines() ([]string, os.Error) {
+func (r *Reader) ReadDotLines() ([]string, error) {
 	// We could use ReadDotBytes and then Split it,
 	// but reading a line at a time avoids needing a
 	// large contiguous block of memory and is simpler.
 	var v []string
-	var err os.Error
+	var err error
 	for {
 		var line string
 		line, err = r.ReadLine()
 		if err != nil {
-			if err == os.EOF {
+			if err == io.EOF {
 				err = io.ErrUnexpectedEOF
 			}
 			break
@@ -474,7 +473,7 @@
 //		"Long-Key": {"Even Longer Value"},
 //	}
 //
-func (r *Reader) ReadMIMEHeader() (MIMEHeader, os.Error) {
+func (r *Reader) ReadMIMEHeader() (MIMEHeader, error) {
 	m := make(MIMEHeader)
 	for {
 		kv, err := r.readContinuedLineSlice()