Merge pull request #3284 from cimnine/fix_pwd_protected_redis_cache

Fixes Cacheops with a password protected redis

netbox/netbox/settings.py

@@ -346,7 +346,7 @@ else:
     REDIS_CACHE_CON_STRING = 'redis://'
 
 if REDIS_PASSWORD:
-    REDIS_CACHE_CON_STRING = '{}{}@'.format(REDIS_CACHE_CON_STRING, REDIS_PASSWORD)
+    REDIS_CACHE_CON_STRING = '{}:{}@'.format(REDIS_CACHE_CON_STRING, REDIS_PASSWORD)
 
 REDIS_CACHE_CON_STRING = '{}{}:{}/{}'.format(REDIS_CACHE_CON_STRING, REDIS_HOST, REDIS_PORT, REDIS_CACHE_DATABASE)