fix: fix --log_format flag not working (#14441)

CHANGELOG.md

@@ -110,7 +110,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (x/gov) [#14347](https://github.com/cosmos/cosmos-sdk/pull/14347) Support `v1.Proposal` message in `v1beta1.Proposal.Content`.
 * (x/gov) [#14390](https://github.com/cosmos/cosmos-sdk/pull/14390) Add title, proposer and summary to proposal struct
 * (baseapp) [#14417](https://github.com/cosmos/cosmos-sdk/pull/14417) `SetStreamingService` accepts appOptions, AppCodec and Storekeys needed to set streamers.  
-  * Store pacakge no longer has a dependency on baseapp. 
+    * Store pacakge no longer has a dependency on baseapp. 
 * (store) [#14438](https://github.com/cosmos/cosmos-sdk/pull/14438)  Pass logger from baseapp to store. 
 
 ### State Machine Breaking
@@ -207,6 +207,7 @@ extension interfaces. `module.Manager.Modules` is now of type `map[string]interf
 
 ### Bug Fixes
 
+* (server) [#14441](https://github.com/cosmos/cosmos-sdk/pull/14441) Fix `--log_format` flag not working.
 * (x/upgrade) [#13936](https://github.com/cosmos/cosmos-sdk/pull/13936) Make downgrade verification work again
 * (x/group) [#13742](https://github.com/cosmos/cosmos-sdk/pull/13742) Fix `validate-genesis` when group policy accounts exist.
 * (x/auth) [#13838](https://github.com/cosmos/cosmos-sdk/pull/13838) Fix calling `String()` when pubkey is set on a `BaseAccount`. 

server/util.go

@@ -150,7 +150,12 @@ func InterceptConfigsPreRunHandler(cmd *cobra.Command, customAppConfigTemplate s
 		return err
 	}
 
-	logger := tmlog.NewTMLogger(tmlog.NewSyncWriter(os.Stdout))
+	var logger tmlog.Logger
+	if serverCtx.Viper.GetString(flags.FlagLogFormat) == tmcfg.LogFormatJSON {
+		logger = tmlog.NewTMJSONLogger(tmlog.NewSyncWriter(os.Stdout))
+	} else {
+		logger = tmlog.NewTMLogger(tmlog.NewSyncWriter(os.Stdout))
+	}
 	logger, err = tmflags.ParseLogLevel(config.LogLevel, logger, tmcfg.DefaultLogLevel)
 	if err != nil {
 		return err