[GR-2798] The vector length in tck quicksort snippet unnecessarily long.

PullRequest: fastr/1456

com.oracle.truffle.r.test.tck/src/com/oracle/truffle/r/test/tck/resources/quicksort.R

@@ -31,5 +31,5 @@ Quicksort = function(n) {
 }
 
 function () {
-    Quicksort(1000);
+    Quicksort(10);
 }