patch 8.2.4294: MS-Windows: #ifdefs for Cygwin are too complicated

Problem:    MS-Windows: #ifdefs for Cygwin are too complicated.
Solution:   Simplify the conditions. (Ken Takata, closes #9693)
diff --git a/src/version.c b/src/version.c
index 5140eb9..70d76d5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4294,
+/**/
     4293,
 /**/
     4292,