cmd-artifact-disk: fix cosa artifact-disk manual
Fixing:
```
cosa artifact-disk manual --image_format xxx --image_suffix xxx --platform xxx
```
The command above did not work because of an error in arg parsing:
`"manual" in args` was always `false`, because `manual` was the name of a subparser,
not an arg of the parser.
@@ -43,7 +43,7 @@ def artifact_cli():
targets.append("manual")
parser = BuildCli()
- subparsers = parser.add_subparsers()
+ subparsers = parser.add_subparsers(dest="command")
# Options for finding the build.
parser.add_argument("--force", action='store_true',
@@ -90,7 +90,7 @@ def artifact_cli():
if build_target:
builder = get_builder(build_target, args.buildroot, args.build,
force=args.force, schema=args.schema)
- elif "manual" in args:
+ elif args.command == "manual":
kwargs = {
'force': args.force,
'image_format': args.image_format,
