add prune kvmvcc

main.go

@@ -12,11 +12,12 @@
 package main
 
 import (
+	"net/http"
+	"runtime/debug"
+
 	_ "github.com/33cn/chain33/system"
 	"github.com/33cn/chain33/util/cli"
 	_ "github.com/33cn/plugin/plugin"
-	"net/http"
-	"runtime/debug"
 )
 
 func main() {

plugin/store/kvmvccmavl/kvmvcc_mavl.go

@@ -63,9 +63,9 @@ type KVmMavlStore struct {
 }
 
 type subKVMVCCConfig struct {
-	EnableMVCCIter bool `json:"enableMVCCIter"`
-	EnableMavlPrune  bool  `json:"enableMavlPrune"`
-	PruneHeight      int32 `json:"pruneHeight"`
+	EnableMVCCIter  bool  `json:"enableMVCCIter"`
+	EnableMavlPrune bool  `json:"enableMavlPrune"`
+	PruneHeight     int32 `json:"pruneHeight"`
 }
 
 type subMavlConfig struct {