patch 8.0.0578: :simalt on MS-Windows does not work properly

Problem:    :simalt on MS-Windows does not work properly.
Solution:   Put something in the typeahead buffer. (Christian Brabandt)
diff --git a/src/version.c b/src/version.c
index 663717b..656a7cc 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    578,
+/**/
     577,
 /**/
     576,