[EOSIO/eos] split blocks.log (#5322)

我是超节点,我用的是云服务器,只有120G,虽然可以增加到500G,但是这费用也挺贵.
除了分割,我还在想能不能删掉一些旧的

I’m not a BP,I used a cloud server, only 120G, although it can increase to 500G, but it’s expensive.

In addition to division, I still want to be able to delete some of the old

-rw-r—r— 1 root root 93M Aug 20 13:14 blocks.index
-rw-r—r— 1 root root 35G Aug 20 13:14 blocks.log