starts with - is handled as option. To insert file names starting with
dash, use --add-file option.
+* List files containing null-separated file names are detected and processed
+automatically. It is not necessary to give --null option.
+
* New option --no-unquote disables unquoting input file names. This
is useful e.g. for processing output from `find dir -print0'.
An orthogonal option --unquote is provided as well.