pool: fix numerical out-of-range error

Motivation:

2 GiB may not be expressed as an integer.  Attempting to do so prevented
remote HTTP transfers.

Modification:

Ensure 2 GiB is represented by a long.

Result:

HTTP transfers work again.

An unreleased regression is fixed.

Target: master
Requires-notes: no
Requires-book: no
Patch: https://rb.dcache.org/r/11255/
Acked-by: Albert Rossi

modules/dcache/src/main/java/org/dcache/pool/movers/RemoteHttpDataTransferProtocol.java

@@ -152,7 +152,7 @@ public class RemoteHttpDataTransferProtocol implements MoverProtocol,
      * A guess on how long to retry a GET request.  Since the file size is
      * unknown, this value may be insufficient if the file is larger.
      */
-    private static final long GET_RETRY_DURATION = maxRetryDuration(GiB.toBytes(2));
+    private static final long GET_RETRY_DURATION = maxRetryDuration(GiB.toBytes(2L));
     private static final String GET_RETRY_DURATION_DESCRIPTION = describeDuration(GET_RETRY_DURATION, MILLISECONDS);
 
     /**