fixup! Convert UNKNOWN default values to null in ext/date

Author: kocsismate

ext/date/php_date.c

@@ -4525,8 +4525,7 @@ static void php_do_date_sunrise_sunset(INTERNAL_FUNCTION_PARAMETERS, int calc_su
 	zend_bool latitude_is_null = 1, longitude_is_null = 1, zenith_is_null = 1, gmt_offset_is_null = 1;
 	double h_rise, h_set, N;
 	timelib_sll rise, set, transit;
-	zend_long time, retformat;
-	zend_bool retformat_is_null;
+	zend_long time, retformat = SUNFUNCS_RET_STRING;
 	int             rs;
 	timelib_time   *t;
 	timelib_tzinfo *tzi;
@@ -4535,17 +4534,13 @@ static void php_do_date_sunrise_sunset(INTERNAL_FUNCTION_PARAMETERS, int calc_su
 	ZEND_PARSE_PARAMETERS_START(1, 6)
 		Z_PARAM_LONG(time)
 		Z_PARAM_OPTIONAL
-		Z_PARAM_LONG_OR_NULL(retformat, retformat_is_null)
+		Z_PARAM_LONG(retformat)
 		Z_PARAM_DOUBLE_OR_NULL(latitude, latitude_is_null)
 		Z_PARAM_DOUBLE_OR_NULL(longitude, longitude_is_null)
 		Z_PARAM_DOUBLE_OR_NULL(zenith, zenith_is_null)
 		Z_PARAM_DOUBLE_OR_NULL(gmt_offset, gmt_offset_is_null)
 	ZEND_PARSE_PARAMETERS_END();
 
-	if (retformat_is_null) {
-		retformat = SUNFUNCS_RET_STRING;
-	}
-
 	if (latitude_is_null) {
 		latitude = INI_FLT("date.default_latitude");
 	}