astyle-plugin ignores default file

[kartoffelsalat]

astyle is looking for a default file in the following places (output of the help message):

Default options file:
---------------------
    Artistic Style looks for a default options file in the
    following order:
    1. The contents of the ARTISTIC_STYLE_OPTIONS environment
       variable if it exists.
    2. The file called .astylerc in the directory pointed to by the
       HOME environment variable ( i.e. $HOME/.astylerc ).
    3. The file called astylerc in the directory pointed to by the
       USERPROFILE environment variable ( i.e. %USERPROFILE%\astylerc ).
    If a default options file is found, the options in this file
    will be parsed BEFORE the command-line options.
    Long options within the default option file may be written without
    the preliminary '--'.

It seems, that your astyle-plugin is not looking for a default file in the manner described above. Also specifying the file manually with the --option command does not work.