Don't assume ai0->ai_canonname will always be filled in.  Print the user-supplied host name if we can't get a canonical name.
Don't assume ai0->ai_canonname will always be filled in.  Print the
user-supplied host name if we can't get a canonical name.

Obtained from:	contrib/tcp_wrappers/socket.c rev. 1.4 (in spirit)

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