HPCC-9956 Reduce log file prints for pre_connect ENETUNREACH errors

Signed-off-by: Mark Kelly <mark.kelly@lexisnexis.com>
Merge pull request #4895 from mckellyln/hpcc9956

HPCC-9956 Reduce log file prints for pre_connect ENETUNREACH errors

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>