rust-status: ignored directories are now correctly only listed if opted into

This fixes the behavior of `hg purge` removing empty ignored directory even
without `--all` or `--ignored`.

rust/hg-core/src/dirstate_tree/status.rs

@@ -728,9 +728,9 b" impl<'a, 'tree, 'on_disk> StatusCommon<'"
                         );
                     })
                 }
-            }
-            if self.options.collect_traversed_dirs {
-                self.outcome.lock().unwrap().traversed.push(hg_path.into())
+                if self.options.collect_traversed_dirs {
+                    self.outcome.lock().unwrap().traversed.push(hg_path.into())
+                }
             }
             is_ignored
         } else {

tests/test-purge-ignored-directory.t

@@ -5,9 +5,8 b' skip ignored directories if -i or --all '
   $ echo 'ignored' > .hgignore
   $ hg ci -qA -m init -d'2 0'
   $ mkdir ignored
-
-The better behavior here is the non-rust behavior, which is to keep
-the directory and only delete it when -i or --all is given.
-
+  $ ls
+  ignored
   $ hg purge -v --no-confirm
-  removing directory ignored (known-bad-output rust !)
+  $ ls
+  ignored