Improve unit test.

Author: javadev

src/test/java/com/github/underscore/FunctionsTest.java

@@ -116,7 +116,7 @@ public void throttle() {
         final Integer[] counter = new Integer[] {0};
         Supplier<Void> incr = new Supplier<Void>() { public Void get() {
             counter[0]++; return null; } };
-        final Supplier<Void> throttleIncr = U.throttle(incr, 30);
+        final Supplier<Void> throttleIncr = U.throttle(incr, 40);
         throttleIncr.get();
         throttleIncr.get();
         U.delay(throttleIncr, 16);