valgrind reporting unitialized bytes sent

[gladish]

1582595558.856188 INFO -- Thread-9882: header:42 write_buffer:1076
==9882== Syscall param socketcall.sendto(msg) points to uninitialised byte(s)
==9882== at 0x5174DFA: sendto (sendto.c:27)
==9882== by 0x4E4D763: lifxSession_SendToInternal (lifx_session.c:456)
==9882== by 0x4E4E03C: lifxSession_BeginSendRequest (lifx_session.c:666)
==9882== by 0x108D26: main (async.c:67)
==9882== Address 0x586b386 is 38 bytes inside a block of size 1,076 alloc'd
==9882== at 0x4C2FB0F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==9882== by 0x4E423BD: lifxBuffer_Init (lifx_buffer.c:35)
==9882== by 0x4E4C962: lifxSession_Open (lifx_session.c:160)
==9882== by 0x108C87: main (async.c:50)
==9882==

[gladish]

This was because the request being sent in from the test app wasn't initialized, and not a library issue