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: Iec773dab30fd27555b9b1d51152fd1901020cc69
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/ecc_manager.cpp b/ecc_manager.cpp
index 3fa1f88..6f19ddd 100644
--- a/ecc_manager.cpp
+++ b/ecc_manager.cpp
@@ -226,7 +226,7 @@
 void ECC::addSELLog(std::string message, std::string path,
                     std::vector<uint8_t> selData, bool assert, uint16_t genId)
 {
-    // sdbusplus::bus::bus bus = sdbusplus::bus::new_default();
+    // sdbusplus::bus_t bus = sdbusplus::bus::new_default();
 
     auto selCall = _bus.new_method_call(
         "xyz.openbmc_project.Logging.IPMI", "/xyz/openbmc_project/Logging/IPMI",