func bytes.SplitN

2 uses

	bytes (current package)
		bytes.go#L377: func SplitN(s, sep []byte, n int) [][]byte { return genSplit(s, sep, 0, n) }

	github.com/golang/protobuf/proto
		text_encode.go#L136: 	frags := bytes.SplitN(p, newline, newlines+1)