Amend mockstub.InvokeChaincode comments

Change-Id: Idf05c9ada738e42cb2912e9eae4b04bdf91e221a
Signed-off-by: jiangyaoguo <jiangyaoguo@gmail.com>

core/chaincode/shim/mockstub.go

@@ -227,9 +227,9 @@ func (stub *MockStub) DeleteRow(tableName string, key []Column) error {
 }
 
 // Invokes a peered chaincode.
-// E.g. stub1.InvokeChaincode("stub2Hash", func, args)
+// E.g. stub1.InvokeChaincode("stub2Hash", funcArgs)
 // Before calling this make sure to create another MockStub stub2, call stub2.MockInit(uuid, func, args)
-// and register it with stub1 by calling stub1.MockPeerChaincode(
+// and register it with stub1 by calling stub1.MockPeerChaincode("stub2Hash", stub2)
 func (stub *MockStub) InvokeChaincode(chaincodeName string, args [][]byte) ([]byte, error) {
 	// TODO "args" here should possibly be a serialized pb.ChaincodeInput
 	function, params := getFuncArgs(args)
@@ -249,10 +249,10 @@ func (stub *MockStub) QueryChaincode(chaincodeName string, args [][]byte) ([]byt
 		mockLogger.Error("Could not find peer chaincode to query", chaincodeName)
 		return nil, errors.New("Could not find peer chaincode to query")
 	}
-	mockLogger.Debug("MockStub", stub.Name, "Invoking peer chaincode", otherStub.Name, args)
+	mockLogger.Debug("MockStub", stub.Name, "Querying peer chaincode", otherStub.Name, args)
 	function, params := getFuncArgs(args)
 	bytes, err := otherStub.MockQuery(function, params)
-	mockLogger.Debug("MockStub", stub.Name, "Invoked peer chaincode", otherStub.Name, "got", bytes, err)
+	mockLogger.Debug("MockStub", stub.Name, "Queried peer chaincode", otherStub.Name, "got", bytes, err)
 	return bytes, err
 }