patch 8.2.4422: autochdir test fails on MS-Windows

Problem:    Autochdir test fails on MS-Windows.
Solution:   Expecta nother error on MS-Windows.
diff --git a/src/testdir/test_autochdir.vim b/src/testdir/test_autochdir.vim
index 95004d2..6474724 100644
--- a/src/testdir/test_autochdir.vim
+++ b/src/testdir/test_autochdir.vim
@@ -113,7 +113,7 @@
 func Test_multibyte()
   " using an invalid character should not cause a crash
   set wic
-  call assert_fails('tc û¦*', 'E344:')
+  call assert_fails('tc û¦*', has('win32') ? 'E480:' : 'E344:')
   set nowic
 endfunc
 
diff --git a/src/version.c b/src/version.c
index 21fefba..2e3fa4f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4422,
+/**/
     4421,
 /**/
     4420,