Added test for errorlog mode setting

Author: Mikhail Galanin

tests/basic/errorlog_permission.phpt

@@ -0,0 +1,38 @@
+--TEST--
+Check permissions for created errorlog file
+--SKIPIF--
+<?php 
+if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
+    die("skip this test on windows");
+}
+?>
+--INI--
+error_log=error_permissions_test.log
+error_log_mode=0600
+--FILE--
+<?php
+
+const LOG_FILENAME='error_permissions_test.log';
+
+try {
+    if (file_exists(LOG_FILENAME)) {
+        unlink(LOG_FILENAME);
+    }
+    $oldMask = umask(0000);
+
+    error_log("hello world");
+
+    assert(file_exists(LOG_FILENAME));
+
+    printf("got permissions=%o\n", fileperms(LOG_FILENAME) & 0777);
+    printf("errorlog contents\n%s", file_get_contents(LOG_FILENAME));
+    
+    umask($oldMask);
+} finally {
+    unlink(LOG_FILENAME);
+}
+?>
+--EXPECTF--
+got permissions=600
+errorlog contents
+[%d-%s-%d %d:%d:%d %s] hello world