channels: Initialize states explicitly

In ssh_channel_new(), initialize channel->state and
channel->request_state explicitly for better readability.

Fixes T194

Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
(cherry picked from commit 2f1f662d46)

src/channels.c

@@ -121,6 +121,10 @@ ssh_channel ssh_channel_new(ssh_session session)
 
     ssh_list_prepend(session->channels, channel);
 
+    /* Set states explicitly */
+    channel->state = SSH_CHANNEL_STATE_NOT_OPEN;
+    channel->request_state = SSH_CHANNEL_REQ_STATE_NONE;
+
     return channel;
 }