Ref: add more PMD rule: bestpractices.xml/OneDeclarationPerLine

src/main/java/com/sheepit/client/Speedtest.java

@@ -100,10 +100,9 @@ public class Speedtest {
 	 * @throws Exception
 	 */
 	private <T> Pair<Long, T> runTimed(Callable<T> task) throws Exception {
-		long start, end;
-		start = System.nanoTime();
+		long start = System.nanoTime();
 		T callValue = task.call();
-		end = System.nanoTime();
+		long end = System.nanoTime();
 		return new Pair<>(Duration.ofNanos(end - start).toMillis(), callValue);
 	}