bx509: Add proper logging

tests/kdc/check-bx509.in

@@ -421,7 +421,7 @@ ${kadmin} ext_keytab -r -k $keytab  HTTP/${server}@${R} || exit 1
 ${kadmin} add -r --use-defaults HTTP/${otherserver}@${R} || exit 1
 ${kadmin} ext_keytab -r -k $ukeytab foo@${R} || exit 1
 
-echo "Starting kdc" ; > messages.log
+echo "Starting kdc";
 ${kdc} --detach --testing || { echo "kdc failed to start"; exit 1; }
 kdcpid=`getpid kdc`
 trap "kill -9 ${kdcpid} ${bx509pid}; echo signal killing kdc and bx509d; exit 1;" EXIT