log_manager: switch to lg2

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ic168870e68d74d990a2b04cf8b34a09f1eada046
diff --git a/log_manager_main.cpp b/log_manager_main.cpp
index 59cbd54..8f3fab7 100644
--- a/log_manager_main.cpp
+++ b/log_manager_main.cpp
@@ -4,6 +4,7 @@
 #include "log_manager.hpp"
 
 #include <filesystem>
+#include <phosphor-logging/lg2.hpp>
 #include <sdbusplus/bus.hpp>
 #include <sdbusplus/server/manager.hpp>
 #include <sdeventplus/event.hpp>
@@ -12,6 +13,8 @@
 
 int main(int /*argc*/, char* /*argv*/[])
 {
+    PHOSPHOR_LOG2_USING_WITH_FLAGS;
+
     auto bus = sdbusplus::bus::new_default();
     auto event = sdeventplus::Event::get_default();
     bus.attach_event(event.get(), SD_EVENT_PRIORITY_NORMAL);
@@ -39,9 +42,8 @@
         }
         catch (std::exception& e)
         {
-            phosphor::logging::log<phosphor::logging::level::ERR>(
-                "An extension's startup function threw an exception",
-                phosphor::logging::entry("ERROR=%s", e.what()));
+            error("An extension's startup function threw an exception: {ERROR}",
+                  "ERROR", e);
         }
     }