Re-introduce fix for Hydra directory sync with multiple process (#5993)

* Add hydra fix that was missing from master

* Remove error commas

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

pytorch_lightning/plugins/training_type/ddp.py

@@ -159,6 +159,8 @@ class DDPPlugin(ParallelPlugin):
             if _HYDRA_AVAILABLE:
                 if HydraConfig.initialized():
                     cwd = get_original_cwd()
+                    os_cwd = f'"{os.getcwd()}"'
+                    command += [f'hydra.run.dir={os_cwd}', f'hydra.job.name=train_ddp_process_{local_rank}']
             proc = subprocess.Popen(command, env=env_copy, cwd=cwd)
             self.interactive_ddp_procs.append(proc)