In your epg.data the 'leadtext' seems to be categorized als 'shorttext'. Most skins provide only a single line for shorttext, hence longer text is truncated there. Try LCARS, it should show you the entire (short)text line wrapped.
The yellow colored text in my screenshot with LCARS shows the following shorttext-entry in epg.data:
ZitatS Mord in Pastell this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttextthis is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext this is a test for long shorttext EOL
Perhaps you resp. vdr can fix your problem in PearlHD with a higher 'EPG bugfix level' (Menu-Settings-EPG). Comments in vdr's epg.c et seqq.. Be aware that a higher EPG bugfix level will have an effect only on new entries in epg.data!
If 'leadtext' is in the events 'description-section' (leading capital letter 'D') all skins will show the entire text line wrapped.