rewrite tests

Author: LamentXU123

ext/standard/tests/general_functions/getenv_null_bytes.phpt

@@ -1,8 +1,16 @@
 --TEST--
-putenv() rejects null bytes
+getenv() and putenv() reject null bytes
 --FILE--
 <?php
 
+foreach ([false, true] as $local_only) {
+    try {
+        getenv("PHP_GETENV_NUL_TEST\0SUFFIX", $local_only);
+    } catch (ValueError $exception) {
+        echo $exception->getMessage() . "\n";
+    }
+}
+
 $var_name = 'PHP_PUTENV_NUL_TEST';
 
 foreach ([
@@ -20,6 +28,8 @@ var_dump(getenv($var_name));
 
 ?>
 --EXPECT--
+getenv(): Argument #1 ($name) must not contain any null bytes
+getenv(): Argument #1 ($name) must not contain any null bytes
 putenv(): Argument #1 ($assignment) must not contain any null bytes
 putenv(): Argument #1 ($assignment) must not contain any null bytes
 bool(false)