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: Id9161c24e5ed91f7194d6d536a29ecda02e8dc84
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/common/utils.hpp b/common/utils.hpp
index 2d3fb7f..4463069 100644
--- a/common/utils.hpp
+++ b/common/utils.hpp
@@ -344,7 +344,7 @@
      *
      *  @return A hierarchical structure representing the properties of the
      *          managed object.
-     *  @throw sdbusplus::exception::exception when it fails
+     *  @throw sdbusplus::exception_t when it fails
      */
     static ObjectValueTree getManagedObj(const char* service, const char* path);