patch 9.1.1391: Vim does not have a vertical tabpanel

Problem:  Vim does not have a tabpanel
Solution: include the tabpanel feature
          (Naruhiko Nishino, thinca)

closes: #17263

Co-authored-by: thinca <thinca@gmail.com>
Signed-off-by: Naruhiko Nishino <naru123456789@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/edit.c b/src/edit.c
index 3c98bb8..4d45e8e 100644
--- a/src/edit.c
+++ b/src/edit.c
@@ -1714,7 +1714,7 @@
 
 	    if (fix_col != pc_col)
 	    {
-		screen_putchar(' ', pc_row, fix_col, attr);
+		screen_putchar(' ', pc_row, fix_col + TPL_LCOL(NULL), attr);
 		--curwin->w_wcol;
 		pc_status = PC_STATUS_RIGHT;
 	    }
@@ -1734,7 +1734,7 @@
 	screen_getbytes(pc_row, pc_col, pc_bytes, &pc_attr);
 	pc_status = PC_STATUS_SET;
     }
-    screen_putchar(c, pc_row, pc_col, attr);
+    screen_putchar(c, pc_row, pc_col + TPL_LCOL(NULL), attr);
 }
 
 #if defined(FEAT_JOB_CHANNEL) || defined(PROTO)