Refs #101044 Check that fd in handle is valid before closing it.  Fixes valgrind warning.
Refs #101044 Check that fd in handle is valid before closing it.  Fixes valgrind warning.

svartika/ccnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,svartika/ccnx