dialyzer: fix unknown type error
dialyzer: fix unknown type error

-> unicode:unicode_char/0 does not exist any more (since R16B?)
digshock/scalaris,tectronics/scalaris,digshock/scalaris,tectronics/scalaris,seyyed/scalaris,seyyed/scalaris,seyyed/scalaris,seyyed/scalaris,tectronics/scalaris,seyyed/scalaris,digshock/scalaris,digshock/scalaris,digshock/scalaris,seyyed/scalaris,tectronics/scalaris,tectronics/scalaris,tectronics/scalaris,tectronics/scalaris,digshock/scalaris,seyyed/scalaris,digshock/scalaris