sideband.hon commit tests: use 'test_must_be_empty' instead of 'test ! -s' (f0dc593)
   1#ifndef SIDEBAND_H
   2#define SIDEBAND_H
   3
   4#define SIDEBAND_PROTOCOL_ERROR -2
   5#define SIDEBAND_REMOTE_ERROR -1
   6
   7int recv_sideband(const char *me, int in_stream, int out);
   8void send_sideband(int fd, int band, const char *data, ssize_t sz, int packet_max);
   9
  10#endif