vim-patch:8.2.0464: typos and other small problems

Problem:    Typos and other small problems.
Solution:   Fix the typos.  Add missing file to distribution.
2d9d409ad4

src/nvim/screen.c

@@ -2220,7 +2220,6 @@ win_line (
   int tocol = MAXCOL;                   // end of inverting
   int fromcol_prev = -2;                // start of inverting after cursor
   bool noinvcur = false;                // don't invert the cursor
-  pos_T *top, *bot;
   int lnum_in_visual_area = false;
   pos_T pos;
   long v;
@@ -2420,6 +2419,8 @@ win_line (
 
     // handle Visual active in this window
     if (VIsual_active && wp->w_buffer == curwin->w_buffer) {
+      pos_T *top, *bot;
+
       if (ltoreq(curwin->w_cursor, VIsual)) {
         // Visual is after curwin->w_cursor
         top = &curwin->w_cursor;