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/channel.pro b/src/proto/channel.pro
index e056d5f..53c5dab 100644
--- a/src/proto/channel.pro
+++ b/src/proto/channel.pro
@@ -4,6 +4,7 @@
 void ch_log(channel_T *ch, char *msg);
 void ch_logs(channel_T *ch, char *msg, char *name);
 channel_T *add_channel(void);
+int has_any_channel(void);
 int channel_unref(channel_T *channel);
 int free_unused_channels_contents(int copyID, int mask);
 void free_unused_channels(int copyID, int mask);