patch 8.0.0178: command count test fails on MS-Windows

Problem:    test_command_count may fail when a previous test interferes, seen
            on MS-Windows.
Solution:   Run it separately.
diff --git a/src/version.c b/src/version.c
index a0887dd..1b64d58 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    178,
+/**/
     177,
 /**/
     176,