Fix name collisions in fputcsv tests

Author: nikic

ext/standard/tests/file/fgetcsv.phpt

@@ -25,7 +25,7 @@ various fgetcsv() functionality tests
 		'aaa"\\"a","bbb"'
 	);
 
-	$file = __DIR__ . 'fgetcsv.csv';
+	$file = __DIR__ . '/fgetcsv.csv';
 	@unlink($file);
 	foreach ($list as $v) {
 		$fp = fopen($file, "w");

ext/standard/tests/file/fputcsv.phpt

@@ -26,7 +26,7 @@ $list = array (
   19 => '"\\""",aaa',
 );
 
-$file = __DIR__ . 'fgetcsv.csv';
+$file = __DIR__ . '/fputcsv.csv';
 @unlink($file);
 
 $fp = fopen($file, "w");

ext/standard/tests/file/fputcsv_variation15.phpt

@@ -28,7 +28,7 @@ $list = array (
   19 => '"/""",aaa',
 );
 
-$file = __DIR__ . 'fgetcsv.csv';
+$file = __DIR__ . '/fputcsv_variation15.csv';
 @unlink($file);
 
 $fp = fopen($file, "w");