fixes

src/restic/forget.py

@@ -43,7 +43,8 @@ def forget(loki_url: str = None, dry_run: bool = False, **kwargs):
     if result.returncode == 0:
         try:
             line = result.stdout
-            data = json.loads(line)
+            # data = json.loads(line)
+            json.loads(line)
         except json.JSONDecodeError:
             logger.error('Error decoding JSON')
             logger.error(line)
@@ -53,7 +54,7 @@ def forget(loki_url: str = None, dry_run: bool = False, **kwargs):
         finally:
             logger.debug('Done')
     else:
-        logger.error(f'Error running command')
+        logger.error('Error running command')
         logger.error(result.stderr)