- correct freebsd proftpd template, fixes #132

- don't display mkdir statement for deactivated docroot when it is not defined, this was already done in the other templates but got somehow lost for etch

lib/configfiles/etch.inc.php

@@ -29,7 +29,7 @@ return Array(
 						'commands' => Array(
 							'mkdir -p ' . $settings['system']['documentroot_prefix'],
 							'mkdir -p ' . $settings['system']['logfiles_directory'],
-							'mkdir -p ' . $settings['system']['deactivateddocroot'],
+							($settings['system']['deactivateddocroot'] != '') ? 'mkdir -p ' . $settings['system']['deactivateddocroot'] : '',
 							'mkdir -p ' . $settings['system']['mod_fcgid_tmpdir'],
 							'chmod 1777 ' . $settings['system']['mod_fcgid_tmpdir'],
 							'a2dismod userdir',