better use default initializer

alib2common/src/measurements/MeasurementResultsXml.cpp

@@ -321,7 +321,7 @@ void MeasurementResultsXml::parseCounterDataFrameCounters ( const std::string &
 			FromXMLParserHelper::popToken ( iter, Token::TokenType::START_ELEMENT, COUNTER_DATA_FRAME_COUNTER_TAG );
 			stealth_string counterName;
-			CounterHint::value_type counterValue = -1; //FIXME Radku overit
+			CounterHint::value_type counterValue = { };
 			for ( ; ; ) {
 				if ( !FromXMLParserHelper::isTokenType ( iter, Token::TokenType::START_ELEMENT ) ) break;