Use short array syntax in ReadPreference tests

Author: jmikola

tests/readPreference/readpreference-getMode-001.phpt

@@ -3,13 +3,13 @@ MongoDB\Driver\ReadPreference::getMode()
 --FILE--
 <?php
 
-$tests = array(
+$tests = [
     MongoDB\Driver\ReadPreference::RP_PRIMARY,
     MongoDB\Driver\ReadPreference::RP_PRIMARY_PREFERRED,
     MongoDB\Driver\ReadPreference::RP_SECONDARY,
     MongoDB\Driver\ReadPreference::RP_SECONDARY_PREFERRED,
     MongoDB\Driver\ReadPreference::RP_NEAREST,
-);
+];
 
 foreach ($tests as $test) {
     $rp = new MongoDB\Driver\ReadPreference($test);

tests/readPreference/readpreference-getTagSets-001.phpt

@@ -3,12 +3,12 @@ MongoDB\Driver\ReadPreference::getTagSets()
 --FILE--
 <?php
 
-$tests = array(
+$tests = [
     null,
-    array(),
-    array(array('dc' => 'ny'), array()),
-    array(array('dc' => 'ny'), array('dc' => 'sf', 'use' => 'reporting'), array()),
-);
+    [],
+    [['dc' => 'ny'], []],
+    [['dc' => 'ny'], ['dc' => 'sf', 'use' => 'reporting'], []],
+];
 
 foreach ($tests as $test) {
     $rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::RP_SECONDARY_PREFERRED, $test);