1.x: fix take(-1) not completing

Author: akarnokd

src/main/java/rx/internal/operators/OperatorTake.java

@@ -114,7 +114,7 @@ else if (requested.compareAndSet(r, r + c)) {
 
         };
 
-        if (limit == 0) {
+        if (limit <= 0) {
             child.onCompleted();
             parent.unsubscribe();
         }

src/test/java/rx/internal/operators/OperatorTakeTest.java

@@ -438,4 +438,16 @@ public void call(Integer v) {
         ts.assertNoErrors();
         ts.assertCompleted();
     }
+
+    @Test(timeout = 1000)
+    public void takeNegative() {
+        TestSubscriber<Integer> ts = TestSubscriber.create();
+
+        Observable.range(1, 1000 * 1000 * 1000).take(-1).subscribe(ts);
+    
+        ts.assertNoValues();
+        ts.assertNoErrors();
+        ts.assertCompleted();
+    }
+
 }