fix(server): show falsey defaults in CLI help (#2355)

* fix(server): show falsey defaults in CLI help

* test(server): remove CLI regression test

---------

Co-authored-by: haijie11 <haijie11@noreply.gitcode.com>
Co-authored-by: abetlen <abetlen@gmail.com>

Author: 3 people

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - feat: update llama.cpp to ggml-org/llama.cpp@4df29be4f
 - fix(example): retain recurrent state for server MTP rollback
 - feat: update llama.cpp to ggml-org/llama.cpp@adb55e514
+- fix(server): show falsey defaults in CLI help by @cupkk in #2355
 
 ## [0.3.34]
 

llama_cpp/server/cli.py

@@ -84,7 +84,7 @@ def add_args_from_model(parser: argparse.ArgumentParser, model: Type[BaseModel])
 
     for name, field in model.model_fields.items():
         description = field.description
-        if field.default and description and not field.is_required():
+        if description and not field.is_required() and field.default is not None:
             description += f" (default: {field.default})"
         base_type = (
             _get_base_type(field.annotation) if field.annotation is not None else str