Boost::urls::format

Boost 1.82 dropped a lovely new toy, boost::urls::format, which is a lot
like our urlFromPieces method, but better in that it makes the resulting
uris more readable, and allows doing things like fragments in a single
line instead of multiple.  We should prefer it in some cases.

Tested:
Redfish service validator passes.
Spot checks of URLs work as expected.
Unit tests pass.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: Ia7b38f0a95771c862507e7d5b4aa68aa1c98403c
diff --git a/redfish-core/lib/pcie_slots.hpp b/redfish-core/lib/pcie_slots.hpp
index 18301bf..ece84a3 100644
--- a/redfish-core/lib/pcie_slots.hpp
+++ b/redfish-core/lib/pcie_slots.hpp
@@ -11,6 +11,7 @@
 #include "utils/json_utils.hpp"
 
 #include <boost/system/error_code.hpp>
+#include <boost/url/format.hpp>
 #include <sdbusplus/asio/property.hpp>
 #include <sdbusplus/unpack_properties.hpp>
 
@@ -214,8 +215,8 @@
 
     asyncResp->res.jsonValue["@odata.type"] = "#PCIeSlots.v1_4_1.PCIeSlots";
     asyncResp->res.jsonValue["Name"] = "PCIe Slot Information";
-    asyncResp->res.jsonValue["@odata.id"] = crow::utility::urlFromPieces(
-        "redfish", "v1", "Chassis", chassisID, "PCIeSlots");
+    asyncResp->res.jsonValue["@odata.id"] =
+        boost::urls::format("/redfish/v1/Chassis/{}/PCIeSlots", chassisID);
     asyncResp->res.jsonValue["Id"] = "1";
     asyncResp->res.jsonValue["Slots"] = nlohmann::json::array();