const os/user.maxBufferSize

4 uses

	os/user (current package)
		cgo_lookup_unix.go#L202: 		return maxBufferSize
		cgo_lookup_unix.go#L242: 			return fmt.Errorf("internal buffer exceeds %d bytes", maxBufferSize)
		cgo_lookup_unix.go#L248: const maxBufferSize = 1 << 20
		cgo_lookup_unix.go#L251: 	return sz > 0 && sz <= maxBufferSize