patch 8.2.2201: write file test fails on MS-Windows

Problem:    Write file test fails on MS-Windows.
Solution:   Force edit after setting 'fileformat'.
diff --git a/src/version.c b/src/version.c
index e3fd6c1..5cb7002 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2201,
+/**/
     2200,
 /**/
     2199,