clean up ListBox docstrings
clean up ListBox docstrings

Julian/urwid,wardi/urwid,tonycpsu/urwid,bk2204/urwid,bk2204/urwid,urwid/urwid,inducer/urwid,douglas-larocca/urwid,westurner/urwid,harlowja/urwid,inducer/urwid,hkoof/urwid,mountainstorm/urwid,ivanov/urwid,foreni-packages/urwid,foreni-packages/urwid,westurner/urwid,foreni-packages/urwid,tonycpsu/urwid,harlowja/urwid,hkoof/urwid,rndusr/urwid,harlowja/urwid,rndusr/urwid,drestebon/urwid,douglas-larocca/urwid,wardi/urwid,drestebon/urwid,zyga/urwid,bk2204/urwid,Julian/urwid,inducer/urwid,urwid/urwid,ivanov/urwid,rndusr/urwid,Julian/urwid,douglas-larocca/urwid,westurner/urwid,zyga/urwid,zyga/urwid,mountainstorm/urwid,drestebon/urwid,tonycpsu/urwid,ivanov/urwid,mountainstorm/urwid,urwid/urwid,wardi/urwid,hkoof/urwid