Fix php-mode strict-types snippet (#498)

Author: zonuexe

snippets/php-mode/strict-types

@@ -1,7 +1,7 @@
--# -*- mode: snippet -*-
--# contributor: USAMI Kenta <[email protected]>
--# name: declare(strict_types=1)
--# key: strict_types
--# group: definitions
--# --
+# -*- mode: snippet -*-
+# contributor: USAMI Kenta <[email protected]>
+# name: declare(strict_types=1)
+# key: strict_types
+# group: definitions
+# --
 declare(strict_types=1);