Update submit_faser_simulate.sh

Control/CalypsoExample/Simulation/scripts/submit_faser_simulate.sh

@@ -183,10 +183,10 @@ cd "${file_stem}"
 #fi
 if [[ -z "$xangle" ]]; then
     faser_simulate.py  --skip "$skip_events" -n "$nevts" "$infile" "$outfile"
-    sim_code = $?
+    sim_code=$?
 else
     faser_simulate.py  --yangle -0.000150 --yshift 12.0 --skip "$skip_events" -n "$nevts" "$infile" "$outfile"
-    sim_code = $?
+    sim_code=$?
 fi
 echo "Return code: $sim_code"
 #