[PATCH 1 of 4] cli: fix celery-run

[Thomas De Schampheleire]

# HG changeset patch
# User Thomas De Schampheleire <thomas.de_schampheleire at nokia.com>
# Date 1542919912 -3600
#      Thu Nov 22 21:51:52 2018 +0100
# Node ID c33600f1151b81dcafda40e3003d4899c9c4189a
# Parent  a6b24ff6d65c33b84d4a6315013fb800816b47ee
cli: fix celery-run

The conversion of celery_args (a tuple) into a list is mandatory, otherwise
following error happens on celery-run:

Traceback (most recent call last):
  File "/home/tdescham/repo/contrib/kallithea/venv/kallithea-release/bin/kallithea-cli", line 11, in <module>
    load_entry_point('Kallithea', 'console_scripts', 'kallithea-cli')()
  File "/home/tdescham/repo/contrib/kallithea/venv/kallithea-release/lib/python2.7/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/home/tdescham/repo/contrib/kallithea/venv/kallithea-release/lib/python2.7/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/home/tdescham/repo/contrib/kallithea/venv/kallithea-release/lib/python2.7/site-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/tdescham/repo/contrib/kallithea/venv/kallithea-release/lib/python2.7/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/tdescham/repo/contrib/kallithea/venv/kallithea-release/lib/python2.7/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/tdescham/repo/contrib/kallithea/kallithea-release/kallithea/bin/kallithea_cli_base.py", line 52, in runtime_wrapper
    return annotated(*args, **kwargs)
  File "/home/tdescham/repo/contrib/kallithea/kallithea-release/kallithea/bin/kallithea_cli_celery.py", line 39, in celery_run
    return cmd.run_from_argv('kallithea celery worker', celery_args)
  File "/home/tdescham/repo/contrib/kallithea/venv/kallithea-release/lib/python2.7/site-packages/celery/bin/worker.py", line 177, in run_from_argv
    *self.parse_options(prog_name, argv, command))
  File "/home/tdescham/repo/contrib/kallithea/venv/kallithea-release/lib/python2.7/site-packages/celery/bin/base.py", line 412, in parse_options
    return self.parser.parse_args(arguments)
  File "/usr/lib64/python2.7/optparse.py", line 1404, in parse_args
    args = largs + rargs
TypeError: can only concatenate list (not "tuple") to list

diff --git a/kallithea/bin/kallithea_cli_celery.py b/kallithea/bin/kallithea_cli_celery.py
--- a/kallithea/bin/kallithea_cli_celery.py
+++ b/kallithea/bin/kallithea_cli_celery.py
@@ -36,4 +36,4 @@ def celery_run(celery_args):
 
     from kallithea.lib import celerypylons
     cmd = celerypylons.worker.worker(celerypylons.app)
-    return cmd.run_from_argv('kallithea celery worker', celery_args)
+    return cmd.run_from_argv('kallithea celery worker', list(celery_args))