patch 8.0.0018
Problem:    When using ":sleep" channel input is not handled.
Solution:   When there is a channel check for input also when not in raw mode.
            Check every 100 msec.
diff --git a/src/proto/ui.pro b/src/proto/ui.pro
index 072e0c4..dbb7213 100644
--- a/src/proto/ui.pro
+++ b/src/proto/ui.pro
@@ -10,6 +10,7 @@
 void ui_set_shellsize(int mustset);
 void ui_new_shellsize(void);
 void ui_breakcheck(void);
+void ui_breakcheck_force(int force);
 void clip_init(int can_use);
 void clip_update_selection(VimClipboard *clip);
 void clip_own_selection(VimClipboard *cbd);