patch 8.1.0790: code for creating tabpages in session is too complex

Problem:    Code for creating tabpages in session is too complex.
Solution:   Simplify the code. (Jason Franklin)
diff --git a/src/version.c b/src/version.c
index 3647397..8d2050f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -792,6 +792,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    790,
+/**/
     789,
 /**/
     788,