patch 7.4.2319
Problem:    No way for a system wide vimrc to stop loading defaults.vim.
            (Christian Hesse)
Solution:   Bail out of defaults.vim if skip_defaults_vim was set.
diff --git a/src/version.c b/src/version.c
index 40d6dc6..0fed162 100644
--- a/src/version.c
+++ b/src/version.c
@@ -764,6 +764,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2319,
+/**/
     2318,
 /**/
     2317,