sdbusplus: use shorter type aliases

The sdbusplus headers provide shortened aliases for many types.
Switch to using them to provide better code clarity and shorter
lines.  Possible replacements are for:
  * bus_t
  * exception_t
  * manager_t
  * match_t
  * message_t
  * object_t
  * slot_t

Change-Id: Iac76ba81d91fe61aa24de8d50774b5fa7349cae9
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/pldmd/pldmd.cpp b/pldmd/pldmd.cpp
index 8e57f20..f58540e 100644
--- a/pldmd/pldmd.cpp
+++ b/pldmd/pldmd.cpp
@@ -202,7 +202,7 @@
     InstanceIdDb instanceIdDb;
     dbus_api::Requester dbusImplReq(bus, "/xyz/openbmc_project/pldm",
                                     instanceIdDb);
-    sdbusplus::server::manager::manager inventoryManager(
+    sdbusplus::server::manager_t inventoryManager(
         bus, "/xyz/openbmc_project/inventory");
 
     Invoker invoker{};