feat(protoc-gen-openapiv2/template): updateSwaggerObjectFromFieldBeha…

…vior add default required rule

protoc-gen-openapiv2/main.go

@@ -51,7 +51,7 @@ var (
 	preserveRPCOrder               = flag.Bool("preserve_rpc_order", false, "if true, will ensure the order of paths emitted in openapi swagger files mirror the order of RPC methods found in proto files. If false, emitted paths will be ordered alphabetically.")
 	enableRpcDeprecation           = flag.Bool("enable_rpc_deprecation", false, "whether to process grpc method's deprecated option.")
 	expandSlashedPathPatterns      = flag.Bool("expand_slashed_path_patterns", false, "if set, expands path parameters with URI sub-paths into the URI. For example, \"/v1/{name=projects/*}/resource\" becomes \"/v1/projects/{project}/resource\".")
-	useProto3FieldSemantics        = flag.Bool("use_proto3_field_semantics", false, "if set, expands path parameters with URI sub-paths into the URI. For example, \"/v1/{name=projects/*}/resource\" becomes \"/v1/projects/{project}/resource\".")
+	useProto3FieldSemantics        = flag.Bool("use_proto3_field_semantics", false, "if set, uses proto3 field semantics for the OpenAPI schema. This means that fields with default values are omitted from the schema.")
 
 	_ = flag.Bool("logtostderr", false, "Legacy glog compatibility. This flag is a no-op, you can safely remove it")
 )