sapi/phpdbg: make OPTIONS static

Author: MaxKellermann

sapi/phpdbg/phpdbg.c

@@ -963,7 +963,7 @@ static sapi_module_struct phpdbg_sapi_module = {
 };
 /* }}} */
 
-const opt_struct OPTIONS[] = { /* {{{ */
+static const opt_struct OPTIONS[] = { /* {{{ */
 	{'c', 1, "ini path override"},
 	{'d', 1, "define ini entry on command line"},
 	{'n', 0, "no php.ini"},