-[ "$_opt_mirror" ] && MIRROR=$_opt_mirror
-[ "$_opt_iso" ] && ISO=$_opt_iso
-[ "$_opt_release" ] && RELEASE=$_opt_release
-[ "$_opt_target" ] && TARGET=$_opt_target
-[ "$_opt_mntpoint" ] && MNTPOINT=$_opt_mntpoint
-[ "$_opt_debopt" ] && DEBOOTSTRAP_OPT=$_opt_debopt
-[ "$_opt_interactive" ] && INTERACTIVE=1
-[ "$_opt_config" ] && CONFIGFILE=$_opt_config
-[ "$_opt_packages_set" ] && PACKAGES='yes'
-[ "$_opt_debconf_set" ] && DEBCONF='yes'
+[ "$_opt_mirror" ] && MIRROR=$_opt_mirror
+[ "$_opt_iso" ] && ISO=$_opt_iso
+[ "$_opt_release" ] && RELEASE=$_opt_release
+[ "$_opt_target" ] && TARGET=$_opt_target
+[ "$_opt_mntpoint" ] && MNTPOINT=$_opt_mntpoint
+[ "$_opt_debopt" ] && DEBOOTSTRAP_OPT=$_opt_debopt
+[ "$_opt_interactive" ] && INTERACTIVE=1
+[ "$_opt_config" ] && CONFIGFILE=$_opt_config
+[ "$_opt_packages_set" ] && PACKAGES='yes'
+[ "$_opt_debconf_set" ] && DEBCONF='yes'