Address PR comments

Author: victorusu

reframe/core/schedulers/torque.py

@@ -95,4 +95,5 @@ def finished(self, job):
 
             with os_ext.change_dir(job.workdir):
                done = os.path.exists(job.stdout) and os.path.exists(job.stderr)
+
             return job.state == 'COMPLETED' and done