Reduce verbosity of "is in blacklist" logging

freqtrade/plugins/pairlist/VolumePairList.py

@@ -4,6 +4,7 @@ Volume PairList provider
 Provides dynamic pair list based on trade volumes
 """
 import logging
+from functools import partial
 from typing import Any, Dict, List
 
 import arrow
@@ -203,7 +204,7 @@ class VolumePairList(IPairList):
 
         # Validate whitelist to only have active market pairs
         pairs = self._whitelist_for_active_markets([s['symbol'] for s in sorted_tickers])
-        pairs = self.verify_blacklist(pairs, logger.info)
+        pairs = self.verify_blacklist(pairs, partial(self.log_once, logmethod=logger.info))
         # Limit pairlist to the requested number of pairs
         pairs = pairs[:self._number_pairs]