Fix redirect handling in case of latest Plesk

Author: sibprogrammer

wait-for-plesk.sh

@@ -2,7 +2,7 @@
 ### Copyright 1999-2020. Plesk International GmbH.
 
 while : ; do
-    curl -ks https://plesk:8443/ | grep "<title>Plesk" > /dev/null
+    curl -ksL https://plesk:8443/ | grep "<title>Plesk" > /dev/null
     [ $? -eq 0 ] && break
     sleep 5
 done