Use QoS=1 as default

tools/dcdbslurmjob/dcdbslurmjob.cpp

@@ -59,7 +59,7 @@ void usage() {
 
     std::cout << "Options:" << std::endl;
     std::cout << "  -b<hosts>     List of MQTT brokers           [default: localhost:1883]" << std::endl;
-    std::cout << "  -q<qos>       MQTT QoS to use                [default: 0]" << std::endl;
+    std::cout << "  -q<qos>       MQTT QoS to use                [default: 1]" << std::endl;
     std::cout << "  -o<timeout>   MQTT timeout in seconds        [default: 10]" << std::endl;
     std::cout << "  -c<hosts>     List of Cassandra hosts        [default: none]" << std::endl;
     std::cout << "  -u<username>  Cassandra username             [default: none]" << std::endl;
@@ -174,7 +174,7 @@ int main(int argc, char** argv) {
     std::string nodelist="", jobId="", userId="";
     std::string substitution="";
     int maxJobLength = -1;
-    int qos = 0;
+    int qos = 1;
     int timeout = 10;
     uint64_t ts=0;