redis.conf small grammar fix

😄

Closes #2034

redis.conf

@@ -417,7 +417,7 @@ slave-priority 100
 # Note: with any of the above policies, Redis will return an error on write
 #       operations, when there are no suitable keys for eviction.
 #
-#       At the date of writing this commands are: set setnx setex append
+#       At the date of writing these commands are: set setnx setex append
 #       incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd
 #       sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby
 #       zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby