AND instead of OR

Should be AND not OR, otherwise the backup for the DBs is done only when DBs are created and then never again.

plugins/localdump/couchdb2.sh

@@ -167,7 +167,7 @@ function _doBackupOfSingleInstance(){
     # echo
     # echo "update_seq --+-- current [${sSequenceCurrent}]" 
     # echo "             +-- backup  [${sSequenceLast}]"
-    if [ ! -z ${sSequenceLast} ] && [ "${sSequenceCurrent}" = "${sSequenceLast}" ]; then
+    if [ "${sSequenceCurrent}" = "${sSequenceLast}" ]; then
       echo SKIP: still on sequence ${sSequenceLast}
     else
       echo