patch 8.0.1792: MS-Windows users expect -? to work like --help

Problem:    MS-Windows users expect -? to work like --help.
Solution:   Add -?. (Christian Brabandt, closes #2867)
diff --git a/src/version.c b/src/version.c
index 9dd2895..b0c8ed7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1792,
+/**/
     1791,
 /**/
     1790,