Fix warning

src/freedombone-image-customise

@@ -1932,6 +1932,7 @@ image_setup_utils() {
     fi
 
     # Email
+    # shellcheck disable=SC2086
     chroot "$rootdir" $REMOVE_PACKAGES postfix
     # shellcheck disable=SC2086
     chroot "$rootdir" $INSTALL_PACKAGES exim4 exim4-daemon-heavy sasl2-bin swaks libnet-ssleay-perl procmail
@@ -1968,6 +1969,7 @@ image_setup_utils() {
     echo "cleanup-maildir commit:$CLEANUP_MAILDIR_COMMIT" >> "$rootdir/root/${PROJECT_NAME}-completed.txt"
 
     # web server
+    # shellcheck disable=SC2086
     chroot "$rootdir" $REMOVE_PACKAGES_PURGE apache2
     # shellcheck disable=SC2086
     chroot "$rootdir" $INSTALL_PACKAGES nginx php-fpm