patch 8.2.4007: session does not restore help buffer properly

Problem:    Session does not restore help buffer properly when "options' is
            missing from 'sessionoptions'.
Solution:   Use a ":help" command to create the help window. (closes #9475,
            closes #9458, closes #9472)
diff --git a/src/version.c b/src/version.c
index ad0d49e..c12bbea 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4007,
+/**/
     4006,
 /**/
     4005,