patch 8.0.1188: autocmd test fails on MS-Windows

Problem:    Autocmd test fails on MS-Windows.
Solution:   Give the buffer a name and find the buffer to be wiped out by
            name.
diff --git a/src/version.c b/src/version.c
index f1ab827..8742035 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1188,
+/**/
     1187,
 /**/
     1186,