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

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ie36d234f4580029a7832a0cd179f3bb78a1a403f
diff --git a/main.cpp b/main.cpp
index db15b8d..3ae9374 100644
--- a/main.cpp
+++ b/main.cpp
@@ -280,11 +280,11 @@
 
     static constexpr auto modeRoot = "/xyz/openbmc_project/settings/fanctrl";
     // Create a manager for the ModeBus because we own it.
-    sdbusplus::server::manager::manager(
-        static_cast<sdbusplus::bus::bus&>(modeControlBus), modeRoot);
+    sdbusplus::server::manager_t(static_cast<sdbusplus::bus_t&>(modeControlBus),
+                                 modeRoot);
     hostBus.request_name("xyz.openbmc_project.Hwmon.external");
     modeControlBus.request_name("xyz.openbmc_project.State.FanCtrl");
-    sdbusplus::server::manager::manager objManager(modeControlBus, modeRoot);
+    sdbusplus::server::manager_t objManager(modeControlBus, modeRoot);
 
     /*
      * All sensors are managed by one manager, but each zone has a pointer to