Don't rely on operator << for object logging

In the upcoming fmt patch, we remove the use of streams, and a number of
our logging statements are relying on them.  This commit changes them to
no longer rely on operator>> or operator+ to build their strings.  This
alone isn't very useful, but in the context of the next patch makes the
automation able to do a complete conversion of all log statements
automatically.

Tested: enabled logging on local and saw log statements print to console

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: I0e5dc2cf015c6924037e38d547535eda8175a6a1
diff --git a/redfish-core/lib/update_service.hpp b/redfish-core/lib/update_service.hpp
index 6c61e40..841463a 100644
--- a/redfish-core/lib/update_service.hpp
+++ b/redfish-core/lib/update_service.hpp
@@ -927,8 +927,8 @@
                     }
                     if (!found)
                     {
-                        BMCWEB_LOG_ERROR
-                            << "Input swID " + *swId + " not found!";
+                        BMCWEB_LOG_ERROR << "Input swID " << *swId
+                                         << " not found!";
                         messages::resourceMissingAtURI(
                             asyncResp->res,
                             crow::utility::urlFromPieces(