Don't send ssh_authorized_key_count, improve output

abra-capsul

@@ -141,20 +141,19 @@ abra_capsul() {
   -d "{\"name\":\"$NAME\", \
        \"size\": \"$SIZE\", \
        \"os\": \"$OS\", \
-       \"ssh_authorized_key_count\": \"1\", \
        \"ssh_key_0\": \"$SSH_KEY\" \
      }" \
   "$CAPSUL_SERVER/api/capsul/create")
 
-  id=$(echo "$response" | $JQ -r ".id")
+  vm_id=$(echo "$response" | $JQ -r ".id")
 
-  if [[ "$id" == "null" ]]; then
+  if [ "$vm_id" == "null" ] || [ -z "$vm_id" ]; then
     error_msg=$(echo "$response" | jq -r ".errors")
     echo "Oops, something went wrong. Capsul API responded with: $error_msg"
     exit 1
   fi
 
-  echo "You new Capsul VPS is up, with ID $id. Enjoy!"
+  echo "You new Capsul VPS is up, with ID $vm_id. Enjoy!"
 }
 
 abra_capsul "$@"