patch 9.0.0394: Cygwin: multibyte characters may be broken in terminal window

Problem:    Cygwin: multibyte characters may be broken in terminal window.
Solution:   Adjust how to read and write on the channel. (Ken Takata,
            closes #11063)

src/version.c

@@ -703,6 +703,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    394,
 /**/
     393,
 /**/