patch 8.2.4769: build warning with UCRT

Problem:    Build warning with UCRT.
Solution:   Adjust #ifdef for _wenviron. (John Marriott)
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 5736463..f6d4b05 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -3673,8 +3673,10 @@
 #if !defined(AMIGA)
     int			i = 0;
     char_u		*entry, *value;
-# ifdef MSWIN
+# if defined (MSWIN)
+#  if !defined(_UCRT)
     extern wchar_t	**_wenviron;
+#  endif
 # else
     extern char		**environ;
 # endif
diff --git a/src/version.c b/src/version.c
index bd51666..81e3824 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4769,
+/**/
     4768,
 /**/
     4767,