[vdr] Where is epg.data supposed to be created by default?

# vdr --version Mar 13 09:52:26.599 [general.debug] using new 1.7.11+ capture code vdr (1.7.40/1.7.40) - The Video Disk Recorder

# vdr --help ...   -E FILE,  --epgfile=FILE write the EPG data into the given FILE (default is                            'epg.data' in the video directory)                            '-E-' disables this                            if FILE is a directory, the default EPG file will be                            created in that directory ...

Starting vdr with # vdr -u vdr --cachedir=/var/cache/vdr --video=/var/vdr/video

Does create an epg.data file in the "cachedir" and not in the "video" dir as suggested by the help text.

Also what is the meaning of setting --epgfile=-E- Does it disable creation of the epg data file completely? If not - what does the description "'-E-' disable this" refer to?

- Magnus