vim-patch:8.2.3914 (#16808)

* vim-patch:8.2.3914: various spelling mistakes in comments

Problem:    Various spelling mistakes in comments.
Solution:   Fix the mistakes. (Dominique Pellé, closes vim/vim#9416)
af4a61a85d

Co-authored-by: zeertzjq <zeertzjq@outlook.com>

src/nvim/plines.c

@@ -83,7 +83,7 @@ int plines_win_nofill(win_T *wp, linenr_T lnum, bool winheight)
     return 1;
   }
 
-  // A folded lines is handled just like an empty line.
+  // Folded lines are handled just like an empty line.
   if (lineFolded(wp, lnum)) {
     return 1;
   }