MB-53550 Fix 'master-password' command

1. Add missing command which caused an 'implicit concatenation'
2. The version of Erlang used in 'mad-hatter' requires 'node' to be passed to 'set_cookie'

Change-Id: Id842f68c4e2c97a6510ee30bf321ae88b163e321
Reviewed-on: https://review.couchbase.org/c/couchbase-cli/+/183457
Well-Formed: Restriction Checker
Tested-by: Steve Watanabe <steve.watanabe@couchbase.com>
Tested-by: Build Bot <build@couchbase.com>
Reviewed-by: Steve Watanabe <steve.watanabe@couchbase.com>

Author: jamesl33

cbmgr.py

@@ -1509,7 +1509,7 @@ def prompt_for_master_pwd(self, node, cookie, password, cb_cfg_path):
             '-proto_dist', 'cb',
             '-epmd_module', 'cb_epmd',
             '-kernel', 'inetrc', f'"{inetrc_file}"', 'dist_config_file', f'"{dist_cfg_file}"',
-            '-eval' 'erlang:set_cookie(list_to_atom(os:getenv("CB_COOKIE"))).',
+            '-eval', 'erlang:set_cookie(node(), list_to_atom(os:getenv("CB_COOKIE"))).',
             '-run', 'encryption_service', 'remote_set_password', node,
         ]