test: enable --v2transport in combination with --usecli

By renaming the "command" send_cli arg. The old name was unsuitable
because the "addnode" RPC has its own "command" arg, leading to
ambiguity when included in kwargs.
Can be tested with
"python3 wallet_multiwallet.py --usecli --v2transport"
which fails on master because of this (python throws a TypeError).

Author: mzumsande

test/functional/test_framework/test_node.py

@@ -787,15 +787,15 @@ def batch(self, requests):
                 results.append(dict(error=e))
         return results
 
-    def send_cli(self, command=None, *args, **kwargs):
+    def send_cli(self, clicommand=None, *args, **kwargs):
         """Run bitcoin-cli command. Deserializes returned string as python object."""
         pos_args = [arg_to_cli(arg) for arg in args]
         named_args = [str(key) + "=" + arg_to_cli(value) for (key, value) in kwargs.items()]
         p_args = [self.binary, f"-datadir={self.datadir}"] + self.options
         if named_args:
             p_args += ["-named"]
-        if command is not None:
-            p_args += [command]
+        if clicommand is not None:
+            p_args += [clicommand]
         p_args += pos_args + named_args
         self.log.debug("Running bitcoin-cli {}".format(p_args[2:]))
         process = subprocess.Popen(p_args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)