| 123456789101112131415161718192021 | // +build go1.5package gomailimport (	"mime"	"mime/quotedprintable"	"strings")var newQPWriter = quotedprintable.NewWritertype mimeEncoder struct {	mime.WordEncoder}var (	bEncoding     = mimeEncoder{mime.BEncoding}	qEncoding     = mimeEncoder{mime.QEncoding}	lastIndexByte = strings.LastIndexByte)
 |