Changed expected output from "0.0" to "0.00"

test/JsonVariant_PrintTo_Tests.cpp

@@ -33,7 +33,7 @@ TEST_F(JsonVariant_PrintTo_Tests, String) {
 
 TEST_F(JsonVariant_PrintTo_Tests, DoubleZero) {
   variant = 0.0;
-  outputMustBe("0.0");
+  outputMustBe("0.00");
 }
 
 TEST_F(JsonVariant_PrintTo_Tests, DoubleDefaultDigits) {