Don't return rpcSUCCESS.

src/cpp/ripple/RPCErr.cpp

@@ -58,7 +58,6 @@ Json::Value rpcError(int iError, Json::Value jvResult)
 		{ rpcSRC_ACT_MISSING,		"srcActMissing",	"Source account does not exist."						},
 		{ rpcSRC_AMT_MALFORMED,		"srcAmtMalformed",	"Source amount/currency/issuer is malformed."			},
 		{ rpcSRC_UNCLAIMED,			"srcUnclaimed",		"Source account is not claimed."						},
-		{ rpcSUCCESS,				"success",			"Success."												},
 		{ rpcTXN_NOT_FOUND,			"txnNotFound",		"Transaction not found."								},
 		{ rpcUNKNOWN_COMMAND,		"unknownCmd",		"Unknown command."										},
 		{ rpcWRONG_SEED,			"wrongSeed",		"The regular key does not point as the master key."		},

src/cpp/ripple/RPCErr.h

@@ -4,8 +4,7 @@
 #include "../json/value.h"
 
 enum {
-	rpcSUCCESS,
-
+	rpcSUCCESS = 0,
 	rpcBAD_SYNTAX,	// Must be 1 to print usage to command line.
 	rpcJSON_RPC,
 

src/cpp/ripple/RPCHandler.cpp

@@ -1564,7 +1564,7 @@ Json::Value RPCHandler::doLogLevel(Json::Value jvRequest)
 	if (!jvRequest.isMember("partition"))
 	{ // set base log severity
 		Log::setMinSeverity(sv, true);
-		return rpcError(rpcSUCCESS);
+		return Json::objectValue;
 	}
 
 	// log_level partition severity base?
@@ -1576,7 +1576,7 @@ Json::Value RPCHandler::doLogLevel(Json::Value jvRequest)
 		else if (!LogPartition::setSeverity(partition, sv))
 			return rpcError(rpcINVALID_PARAMS);
 
-		return rpcError(rpcSUCCESS);
+		return Json::objectValue;
 	}
 
 	return rpcError(rpcINVALID_PARAMS);