Improved GangGo support.

instanceinfo.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Print some basic info about fediverse instances.
 
-# Version: 2019-06-25_1
+# Version: 2019-06-25_2
 
 if [[ -z "${1}" ]]; then
     echo "usage: ${0} DOMAIN" >&2
@@ -74,6 +74,9 @@ function main()
 
         # shellcheck disable=SC2155
         local admins=$(jq -r ".metadata.staffAccounts" <<<"${json}")
+        if [[ "${admins}" == "null" ]]; then
+            admins=$(jq -r ".metadata.adminAccount" <<<"${json}")
+        fi
         [[ "${admins}" != "null" ]] && echo "Admins: ${admins}"
 
         echo -n "Number of users: "