Fix a couple of code style and indentation issues

ngx_http_fancyindex_module.c

@@ -721,8 +721,9 @@ make_content_buf(
      * If we are a the root of the webserver (URI =  "/" --> length of 1),
      * do not display the "Parent Directory" link.
      */
-    if(r->uri.len == 1)
+    if (r->uri.len == 1) {
         len -= ngx_sizeof_ssz(t_parentdir_entry);
+    }
 
     entry = entries.elts;
     for (i = 0; i < entries.nelts; i++) {