const mime/multipart.maxMIMEHeaderSize

3 uses

	mime/multipart (current package)
		multipart.go#L348: const maxMIMEHeaderSize = 10 << 20
		multipart.go#L372: 	return r.nextPart(false, maxMIMEHeaderSize, maxMIMEHeaders())
		multipart.go#L381: 	return r.nextPart(true, maxMIMEHeaderSize, maxMIMEHeaders())