base64 stream decoder works bad

[gopherbot]

by cfanfrank:

What steps will reproduce the problem?
http://play.golang.org/p/rStVNER8m-

What is the expected output?
[2 0 7 99 111 110 110 101 99 116]
[2 0 7 99 111 110 110 101 99 116 0 63]

What do you see instead?
[2 0 7 99 111 110 110 101 99 0]
[2 0 7 99 111 110 110 101 99 116 0 63]

Which compiler are you using (5g, 6g, 8g, gccgo)?
6g

Which operating system are you using?
OS X 10.7

Which version are you using?  (run 'go version')
go version go1.0.3

[alberts]

Comment 1:

Not a bug.
You're ignoring the n and err being returned by the first Read.
http://play.golang.org/p/tXpx-wY5OM

[gopherbot]

Comment 2 by cfanfrank:

Oh, it's my mistake.
But why can not got the last byte?

[alberts]

Comment 3:

http://tip.golang.org/src/pkg/encoding/base64/base64.go#L298

[minux]

Comment 4:

Status changed to WorkingAsIntended.