ejabberd: wait until ejabberd is up and running

ejabberdctl start returns immediately even if ejabberd is not ready
yet. Add a call to ejabberdctl started just after to wait until the
status says ejabberd is up and running.

Signed-off-by: Johan Oudinet <johan.oudinet@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/ejabberd/S50ejabberd

@@ -25,6 +25,12 @@ case "$1" in
         mkrundir || exit 1
         echo -n "Starting ejabberd... "
         ctl start --spool "$SPOOLDIR"
+        # Wait until ejabberd is up and running.
+        if ctl started; then
+            echo "done"
+        else
+            echo "failed"
+        fi
         ;;
     stop)
         echo -n "Stopping ejabberd... "