patch 8.2.0848: MS-Windows: the Windows terminal code has some flaws

Problem:    MS-Windows: the Windows terminal code has some flaws.
Solution:   Do not redraw the right edge of the screen.  Remove the background
            color trick.  Flush the screen output buffer often.  (Nobuhiro
            Takasaki, #5546)
diff --git a/src/version.c b/src/version.c
index 7eafcc1..47538a6 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    848,
+/**/
     847,
 /**/
     846,