patch 7.4.1485
Problem:    Job input from buffer is not implemented.
Solution:   Implement it.  Add "in-top" and "in-bot" options.
diff --git a/src/os_win32.c b/src/os_win32.c
index 9c87346..42e8672 100644
--- a/src/os_win32.c
+++ b/src/os_win32.c
@@ -5083,9 +5083,7 @@
     job->jv_channel = channel;
     channel_set_pipes(channel, (sock_T)ifd[1], (sock_T)ofd[0],
 			       use_out_for_err ? INVALID_FD : (sock_T)efd[0]);
-    channel_set_job(channel, job);
-    channel_set_options(channel, options);
-
+    channel_set_job(channel, job, options);
 #   ifdef FEAT_GUI
      channel_gui_register(channel);
 #   endif