Fix: Code could not works for debian packages

build/makepack-dolibarr.pl

htdocs/admin/system/constall.php

htdocs/core/class/conf.class.php

htdocs/filefunc.inc.php

htdocs/index.php

htdocs/install/check.php

htdocs/install/etape0.php

htdocs/install/etape1.php

htdocs/install/etape2.php

htdocs/install/etape4.php

htdocs/install/etape5.php

htdocs/install/fileconf.php

htdocs/install/inc.php

htdocs/install/licence.php

htdocs/main.inc.php

htdocs/master.inc.php