patch 8.0.1131: not easy to trigger an autocommand for new terminal window

Problem:    It is not easy to trigger an autocommand for new terminal window.
            (Marco Restelli)
Solution:   Trigger BufWinEnter after setting 'buftype'.
diff --git a/src/version.c b/src/version.c
index 84dd7e7..1ff5b3e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1131,
+/**/
     1130,
 /**/
     1129,