Merge PR #4403: Paramchange proposal skips omitempty fields

x/params/client/cli/tx.go

@@ -26,7 +26,8 @@ func GetCmdSubmitProposal(cdc *codec.Codec) *cobra.Command {
 		Short: "Submit a parameter change proposal",
 		Long: strings.TrimSpace(
 			fmt.Sprintf(`Submit a parameter proposal along with an initial deposit.
-The proposal details must be supplied via a JSON file.
+The proposal details must be supplied via a JSON file. For values that contains
+objects, only non-empty fields will be updated.
 
 IMPORTANT: Currently parameter changes are evaluated but not validated, so it is
 very important that any "value" change is valid (ie. correct type and within bounds)
@@ -34,7 +35,7 @@ for its respective parameter, eg. "MaxValidators" should be an integer and not a
 
 Proper vetting of a parameter change proposal should prevent this from happening
 (no deposits should occur during the governance process), but it should be noted
-regardless. 
+regardless.
 
 Example:
 $ %s tx gov submit-proposal param-change <path/to/proposal.json> --from=<key_or_address>