setup.py: Fix vault subcommand import

setup.py

@@ -54,7 +54,7 @@ setup(
         [console_scripts]
         swh-vault=swh.vault.cli:main
         [swh.cli.subcommands]
-        vault=swh.vault.cli:cli
+        vault=swh.vault.cli:vault
     ''',
     classifiers=[
         "Programming Language :: Python :: 3",

swh/vault/cli.py

@@ -18,6 +18,7 @@ checked, then the config file will be searched in:
     os.path.join(d, DEFAULT_CONFIG_PATH), '|'.join(SWH_CONFIG_EXTENSIONS))
                      for d in SWH_CONFIG_DIRECTORIES))
 
+
 @click.group(name='vault', context_settings=CONTEXT_SETTINGS,
              cls=AliasedGroup)
 @click.pass_context