vim-patch:8.0.1169: highlignting one char too many with 'list' and 'cul'

Problem:    Highlignting one char too many with 'list' and 'cul'.
Solution:   Check for 'list' being active. (Ozaki Kiichi, closes vim/vim#2177)
5ece3e359c

src/nvim/screen.c

@@ -3027,7 +3027,9 @@ win_line (
             cur = cur->next;
         }
         // Only highlight one character after the last column.
-        if (*ptr == NUL && did_line_attr >= 1) {
+        if (*ptr == NUL
+            && (did_line_attr >= 1
+                || (wp->w_p_list && lcs_eol_one == -1))) {
           search_attr = 0;
         }
       }