Problem: When items are combined with user-defined highlight attributes
(e.g., strikethrough), trunc inherits these attributes, making
the text difficult to read.
Solution: trunc now uses the original Pmenu and PmenuSel highlight
attributes (glepnir)
closes: vim/vim#173400816f17e9a
Co-authored-by: glepnir <glephunter@gmail.com>