format optimization

packaging/cfg/taos.cfg

@@ -295,9 +295,12 @@ keepColumnName            1
 
 # percent of redundant data in tsdb meta will compact meta data,0 means donot compact
 # tsdbMetaCompactRatio    0
+
 # default string type used for storing JSON String, options can be binary/nchar, default is binary
 # defaultJSONStrType      binary
+
 # force TCP transmission 
 # rpcForceTcp        0
+
 # unit MB. Flush vnode wal file if walSize > walFlushSize and walSize > cache*0.5*blocks
 # walFlushSize         1024