Fix docker command_list

command_list always generates ***docker docker***
Without fix , docker runs new image which doesn't exist ,
docker fetch it in ***docker run*** command and it generates progress information to stderr.
It will end galaxy job as fail.

But rerun same job, it will be success , because of the image is already exists , fetch process never happens.

lib/galaxy/tools/deps/docker_util.py

@@ -185,7 +185,8 @@ def build_docker_run_command(
 def command_list(command, command_args=[], **kwds):
     """Return Docker command as an argv list."""
     command_parts = _docker_prefix(**kwds)
-    command_parts.extend(command_parts)
+    command_parts.append(command)
+    command_parts.extend(command_args)
     return command_parts