Smarty path is not set correctly by fusiondirectory-setup --write-vars

Description

When using fusiondirectory-setup with --write-vars, SMARTY value isn't correctly set

Distribution Name and Version

Debian 10

FusionDirectory Version

1.4 dev from GIT

PHP version used

PHP7.3

Origin of php packages

Debian

Steps to Reproduce

1. root@fusion-dev:/var/www/html/fusiondirectory# git clone https://gitlab.fusiondirectory.org/fusiondirectory/fd.git
2. /usr/local/bin/fusiondirectory-setup --set-fd_home=/var/www/html/fusiondirectory/fd --yes --check-directories --update-cache --update-locales --write-vars
3. with git diff : I get :

-/*!
- * \brief Path for smarty3 libraries
- */
-define("SMARTY", "/usr/share/php/smarty3/Smarty.class.php");
+/* Path for smarty3 libraries */
+define("SMARTY", "/usr/share/php/smarty3");
 

Smarty.class.php is missing

Reproduces how often: 100%

Additional Information

As Smarty isn't loaded, UI could be displayed