patch 8.0.0004
Problem:    A string argument for function() that is not a function name
            results in an error message with NULL. (Christian Brabandt)
Solution:   Use the argument for the error message.
diff --git a/src/version.c b/src/version.c
index dcf02c2..5634114 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4,
+/**/
     3,
 /**/
     2,