patch 8.1.2092: MS-Windows: redirect in system() does not work

Problem:    MS-Windows: redirect in system() does not work.
Solution:   Handle 'shellxescape' and 'shellxquote' better. (Yasuhiro
            Matsumoto, closes #2054)
diff --git a/src/version.c b/src/version.c
index 2d9ffa3..057a6f7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2092,
+/**/
     2091,
 /**/
     2090,