listings-ext version (return code: 0)
%%--> processing file "version"
version is no valid file
listings-ext --help (return code: 1)
usage:
listings-ext [-c|--command] [-e|--ext] [-g|--debug] \
[-h|--help] [-n|--no-header] \
[{-o|--output-file} [<output filename>]] <filename>, ...
-c: generate commands, which can be input and later used by
\lstuse, optional
-e: include file name extension into the identifier
-g: debug mode, create some additional output, optional
-h: show this help, optional
-n: write no header into the LaTeX code, optional; valid only,
if -c isn't used
-o [<output filename>]: if this argument is present, the output will
be written into a file <output filename>; if the
<output filename> is omitted, the output is redirected
into a file with a basename corresponding to the name
of the current directory, it has an extension of ".lst".