patch 8.2.2894: MS-Windows: using enc_locale() for strftime() might not work

Problem:    MS-Windows: using enc_locale() for strftime() might not work.
Solution:   Use wcsftime(). (Ken Takata, closes #8271)
diff --git a/src/version.c b/src/version.c
index 2dedcbf..4cf2c3e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2894,
+/**/
     2893,
 /**/
     2892,