feat($Redis): enable Redis log output

misc/redis/redis.conf

@@ -237,7 +237,7 @@ loglevel notice
 # Specify the log file name. Also the empty string can be used to force
 # Redis to log on the standard output. Note that if you use standard
 # output for logging but daemonize, logs will be sent to /dev/null
-logfile ""
+logfile "redis.log"
 
 # To enable logging to the system logger, just set 'syslog-enabled' to yes,
 # and optionally update the other syslog parameters to suit your needs.
@@ -1782,4 +1782,4 @@ rdb-save-incremental-fsync yes
 # the main dictionary scan
 # active-defrag-max-scan-fields 1000
 
-# Timestamp 8:51 AM, May.13, 2020
+# Timestamp 10:16 AM, May.15, 2020