src/pkg/[a-m]*: gofix -r error -force=error

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/5322051
diff --git a/src/pkg/crypto/rand/rand.go b/src/pkg/crypto/rand/rand.go
index 42d9da0..5975903 100644
--- a/src/pkg/crypto/rand/rand.go
+++ b/src/pkg/crypto/rand/rand.go
@@ -6,10 +6,7 @@
 // pseudorandom number generator.
 package rand
 
-import (
-	"io"
-	"os"
-)
+import "io"
 
 // Reader is a global, shared instance of a cryptographically
 // strong pseudo-random generator.
@@ -18,4 +15,4 @@
 var Reader io.Reader
 
 // Read is a helper function that calls Reader.Read.
-func Read(b []byte) (n int, err os.Error) { return Reader.Read(b) }
+func Read(b []byte) (n int, err error) { return Reader.Read(b) }
diff --git a/src/pkg/crypto/rand/rand_unix.go b/src/pkg/crypto/rand/rand_unix.go
index 76a7365..09442ad 100644
--- a/src/pkg/crypto/rand/rand_unix.go
+++ b/src/pkg/crypto/rand/rand_unix.go
@@ -30,7 +30,7 @@
 	mu   sync.Mutex
 }
 
-func (r *devReader) Read(b []byte) (n int, err os.Error) {
+func (r *devReader) Read(b []byte) (n int, err error) {
 	r.mu.Lock()
 	defer r.mu.Unlock()
 	if r.f == nil {
@@ -71,7 +71,7 @@
 	time, seed, dst, key [aes.BlockSize]byte
 }
 
-func (r *reader) Read(b []byte) (n int, err os.Error) {
+func (r *reader) Read(b []byte) (n int, err error) {
 	r.mu.Lock()
 	defer r.mu.Unlock()
 	n = len(b)
diff --git a/src/pkg/crypto/rand/rand_windows.go b/src/pkg/crypto/rand/rand_windows.go
index 0eab6b2..590571d 100644
--- a/src/pkg/crypto/rand/rand_windows.go
+++ b/src/pkg/crypto/rand/rand_windows.go
@@ -23,7 +23,7 @@
 	mu   sync.Mutex
 }
 
-func (r *rngReader) Read(b []byte) (n int, err os.Error) {
+func (r *rngReader) Read(b []byte) (n int, err error) {
 	r.mu.Lock()
 	if r.prov == 0 {
 		const provType = syscall.PROV_RSA_FULL
diff --git a/src/pkg/crypto/rand/util.go b/src/pkg/crypto/rand/util.go
index 7702847..322da4a 100644
--- a/src/pkg/crypto/rand/util.go
+++ b/src/pkg/crypto/rand/util.go
@@ -12,7 +12,7 @@
 
 // Prime returns a number, p, of the given size, such that p is prime
 // with high probability.
-func Prime(rand io.Reader, bits int) (p *big.Int, err os.Error) {
+func Prime(rand io.Reader, bits int) (p *big.Int, err error) {
 	if bits < 1 {
 		err = os.EINVAL
 	}
@@ -48,7 +48,7 @@
 }
 
 // Int returns a uniform random value in [0, max).
-func Int(rand io.Reader, max *big.Int) (n *big.Int, err os.Error) {
+func Int(rand io.Reader, max *big.Int) (n *big.Int, err error) {
 	k := (max.BitLen() + 7) / 8
 
 	// b is the number of bits in the most significant byte of max.