pkg testing/iotest, func DataErrReader(io.Reader) io.Reader
pkg testing/iotest, func HalfReader(io.Reader) io.Reader
pkg testing/iotest, func NewReadLogger(string, io.Reader) io.Reader
pkg testing/iotest, func NewWriteLogger(string, io.Writer) io.Writer
pkg testing/iotest, func OneByteReader(io.Reader) io.Reader
pkg testing/iotest, func TimeoutReader(io.Reader) io.Reader

pkg bufio, const MaxScanTokenSize ideal-int
pkg bufio, func NewScanner(io.Reader) *Scanner
pkg bufio, func ScanBytes([]uint8, bool) (int, []uint8, error)
pkg bufio, func ScanLines([]uint8, bool) (int, []uint8, error)
pkg bufio, func ScanRunes([]uint8, bool) (int, []uint8, error)
pkg bufio, func ScanWords([]uint8, bool) (int, []uint8, error)
pkg bufio, method (*Reader) WriteTo(io.Writer) (int64, error)
pkg bufio, method (*Scanner) Bytes() []uint8

are still covered by their original MIT license, with the additional
copyright staring in 2011 when the project was ported over:

    apic.go emitterc.go parserc.go readerc.go scannerc.go
    writerc.go yamlh.go yamlprivateh.go

Copyright (c) 2006-2010 Kirill Simonov
Copyright (c) 2006-2011 Kirill Simonov