ObjectToPack: Add missing @Override annotation

Change-Id: I65ed7b89312d58ea816b46d27707ff907df1c78b
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/ObjectToPack.java

@@ -182,6 +182,7 @@ public class ObjectToPack extends PackedObjectInfo {
 	}
 
 	/** @return the type of this object. */
+	@Override
 	public final int getType() {
 		return (flags >> TYPE_SHIFT) & 0x7;
 	}