In syncache_expand() insert a proper syncache_free() to fix a case that currently can't be triggered.  But better be safe than sorry later on.  Additionally it properly silences Coverity Prevent for future tests.
In syncache_expand() insert a proper syncache_free() to fix a case
that currently can't be triggered.  But better be safe than sorry
later on.  Additionally it properly silences Coverity Prevent for
future tests.

Found by:	Coverity Prevent(tm)
Coverity ID:	CID802
Sponsored by:	TCP/IP Optimization Fundraise 2005
MFC after:	3 days

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