fix: list keys output for empty keys (backport #15876) (#15894)

Co-authored-by: Mantas Vidutis <mantas.a.vidutis@gmail.com>
Co-authored-by: Julien Robert <julien@rbrt.fr>

Author: 3 people

CHANGELOG.md

@@ -47,6 +47,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 * (baseapp) [#15789](https://github.com/cosmos/cosmos-sdk/pull/15789) Ensure `PrepareProposal` and `ProcessProposal` respect `InitialHeight` set by CometBFT when set to a value greater than 1.
 * (types) [#15433](https://github.com/cosmos/cosmos-sdk/pull/15433) Allow disabling of account address caches (for printing bech32 account addresses).
+* (client/keys) [#15876](https://github.com/cosmos/cosmos-sdk/pull/15876) Fix the JSON output `<appd> keys list --output json` when there are no keys.
 
 ## [v0.47.1](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.1) - 2023-03-23
 

client/keys/list.go

@@ -33,7 +33,7 @@ func runListCmd(cmd *cobra.Command, _ []string) error {
 		return err
 	}
 
-	if len(records) == 0 {
+	if len(records) == 0 && clientCtx.OutputFormat == OutputFormatJSON {
 		cmd.Println("No records were found in keyring")
 		return nil
 	}