Remove trailing whitespace

Author: jmikola

tests/causal-consistency/causal-consistency-010.phpt

@@ -2,7 +2,7 @@
 Causal consistency: unacknowledged write does not update operationTime
 --SKIPIF--
 <?php require __DIR__ . "/../utils/basic-skipif.inc"; ?>
-<?php NEEDS('REPLICASET'); CLEANUP(REPLICASET);  ?>
+<?php NEEDS('REPLICASET'); CLEANUP(REPLICASET); ?>
 --FILE--
 <?php
 require_once __DIR__ . "/../utils/basic.inc";