Problem: potential buffer underrun when settings statusline like option
(q1uf3ng)
Solution: Validate that p > out before accessing p[-1]
closes: vim/vim#1996191b402f575
Co-authored-by: Christian Brabandt <cb@256bit.org>
Problem: Tabline highlight wrong after truncated double width label.
Solution: Fill up half a double width character later. (closesvim/vim#12614)
d392a74c5a