Stabilize JSON dump format (#1633)

README.md

@@ -2313,8 +2313,7 @@ $ just --dump > formatted-justfile
 ```
 
 The `--dump` command can be used with `--dump-format json` to print a JSON
-representation of a `justfile`. The JSON format is currently unstable, so the
-`--unstable` flag is required.
+representation of a `justfile`.
 
 ### Fallback to parent `justfile`s
 

src/subcommand.rs

@@ -329,7 +329,6 @@ impl Subcommand {
   fn dump(config: &Config, ast: Ast, justfile: Justfile) -> Result<(), Error<'static>> {
     match config.dump_format {
       DumpFormat::Json => {
-        config.require_unstable("The JSON dump format is currently unstable.")?;
         serde_json::to_writer(io::stdout(), &justfile)
           .map_err(|serde_json_error| Error::DumpJson { serde_json_error })?;
         println!();

tests/json.rs

@@ -705,16 +705,6 @@ fn quiet() {
   );
 }
 
-#[test]
-fn requires_unstable() {
-  Test::new()
-    .justfile("foo:")
-    .args(["--dump", "--dump-format", "json"])
-    .stderr("error: The JSON dump format is currently unstable. Invoke `just` with the `--unstable` flag to enable unstable features.\n")
-    .status(EXIT_FAILURE)
-    .run();
-}
-
 #[test]
 fn settings() {
   test(