patch 8.0.0186: confusing error message from assert_notequal()

Problem:    The error message from assert_notequal() is confusing.
Solution:   Only mention the expected value.
diff --git a/src/version.c b/src/version.c
index d5fa549..6511b36 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    186,
+/**/
     185,
 /**/
     184,