patch 8.1.1848: 'langmap' is not used for CTRL-W command in terminal

Problem:    'langmap' is not used for CTRL-W command in terminal.
Solution:   Push the command in the typeahead buffer instead of the stuff
            buffer. (closes #4814)
diff --git a/src/version.c b/src/version.c
index b8a84ac..3ec385c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1848,
+/**/
     1847,
 /**/
     1846,