dfs: use ReftableConfig() constructor in DfsReftableDatabase

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Change-Id: I756f086fccaba8e77db516160c14708f97519f93

org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/dfs/DfsReftableDatabase.java

@@ -124,7 +124,7 @@ public class DfsReftableDatabase extends DfsRefDatabase {
 	 * @return configuration to write new reftables with.
 	 */
 	public ReftableConfig getReftableConfig() {
-		return new ReftableConfig(getRepository().getConfig());
+		return new ReftableConfig(getRepository());
 	}
 
 	/**