lirc_client: read_string() not terminating buffer contents (#216);
lirc_client: read_string() not terminating buffer contents (#216);

Lack og trailing '\0' in certain situations causes segfaults
in irsend.

stb-tester/lirc,stb-tester/lirc,stb-tester/lirc,stb-tester/lirc,stb-tester/lirc,stb-tester/lirc