channels: Reformat ssh_channel_free()

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>

src/channels.c

@@ -1007,16 +1007,20 @@ void ssh_channel_free(ssh_channel channel) {
  * @brief Effectively free a channel, without caring about flags
  */
 
-void ssh_channel_do_free(ssh_channel channel){
+void ssh_channel_do_free(ssh_channel channel)
-  struct ssh_iterator *it;
+{
+    struct ssh_iterator *it = NULL;
     ssh_session session = channel->session;
+
     it = ssh_list_find(session->channels, channel);
-  if(it != NULL){
+    if (it != NULL) {
         ssh_list_remove(session->channels, it);
     }
+
     ssh_buffer_free(channel->stdout_buffer);
     ssh_buffer_free(channel->stderr_buffer);
-  if (channel->callbacks != NULL){
+
+    if (channel->callbacks != NULL) {
         ssh_list_free(channel->callbacks);
     }