fix: fix style error in DvObject.java

Author: vera

src/main/java/edu/harvard/iq/dataverse/DvObject.java

@@ -140,7 +140,9 @@ public String visit(DataFile df) {
 
     @Column(insertable = false, updatable = false) private String dtype;
 
-    public String getDtype() { return dtype; }
+    public String getDtype() {
+        return dtype;
+    }
 
     @OneToMany(mappedBy="dvobject",fetch = FetchType.LAZY,cascade={CascadeType.REMOVE, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
     private List<DataverseFeaturedItem> dataverseFeaturedItems;