Make sure the compiler knows g_gate_xvlog() and g_gate_xlog() do not return.  This silences a warning from clang 3.2 about uninitialized use of the variable 'mediasize' in sbin/ggate/shared/ggate.c.
Make sure the compiler knows g_gate_xvlog() and g_gate_xlog() do not
return.  This silences a warning from clang 3.2 about uninitialized use
of the variable 'mediasize' in sbin/ggate/shared/ggate.c.

Reviewed by:	pjd
MFC after:	1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase