fix: display help with correct default values (#481)

Signed-off-by: Sébastien Prud'homme <sebastien.prudhomme@gmail.com>

main.go

@@ -43,58 +43,58 @@ func main() {
 			},
 			&cli.IntFlag{
 				Name:    "threads",
-				DefaultText: "Number of threads used for parallel computation. Usage of the number of physical cores in the system is suggested.",
+				Usage:   "Number of threads used for parallel computation. Usage of the number of physical cores in the system is suggested.",
 				EnvVars: []string{"THREADS"},
 				Value:   4,
 			},
 			&cli.StringFlag{
 				Name:    "models-path",
-				DefaultText: "Path containing models used for inferencing",
+				Usage:   "Path containing models used for inferencing",
 				EnvVars: []string{"MODELS_PATH"},
 				Value:   filepath.Join(path, "models"),
 			},
 			&cli.StringFlag{
 				Name:    "preload-models",
-				DefaultText: "A List of models to apply in JSON at start",
+				Usage:   "A List of models to apply in JSON at start",
 				EnvVars: []string{"PRELOAD_MODELS"},
 			},
 			&cli.StringFlag{
 				Name:    "preload-models-config",
-				DefaultText: "A List of models to apply at startup. Path to a YAML config file",
+				Usage:   "A List of models to apply at startup. Path to a YAML config file",
 				EnvVars: []string{"PRELOAD_MODELS_CONFIG"},
 			},
 			&cli.StringFlag{
 				Name:    "config-file",
-				DefaultText: "Config file",
+				Usage:   "Config file",
 				EnvVars: []string{"CONFIG_FILE"},
 			},
 			&cli.StringFlag{
 				Name:    "address",
-				DefaultText: "Bind address for the API server.",
+				Usage:   "Bind address for the API server.",
 				EnvVars: []string{"ADDRESS"},
 				Value:   ":8080",
 			},
 			&cli.StringFlag{
 				Name:    "image-path",
-				DefaultText: "Image directory",
+				Usage:   "Image directory",
 				EnvVars: []string{"IMAGE_PATH"},
 				Value:   "",
 			},
 			&cli.StringFlag{
 				Name:    "backend-assets-path",
-				DefaultText: "Path used to extract libraries that are required by some of the backends in runtime.",
+				Usage:   "Path used to extract libraries that are required by some of the backends in runtime.",
 				EnvVars: []string{"BACKEND_ASSETS_PATH"},
 				Value:   "/tmp/localai/backend_data",
 			},
 			&cli.IntFlag{
 				Name:    "context-size",
-				DefaultText: "Default context size of the model",
+				Usage:   "Default context size of the model",
 				EnvVars: []string{"CONTEXT_SIZE"},
 				Value:   512,
 			},
 			&cli.IntFlag{
 				Name:    "upload-limit",
-				DefaultText: "Default upload-limit. MB",
+				Usage:   "Default upload-limit. MB",
 				EnvVars: []string{"UPLOAD_LIMIT"},
 				Value:   15,
 			},