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/dbus/dbuspassiveredundancy.cpp b/dbus/dbuspassiveredundancy.cpp
index 57c3c50..f7f82dd 100644
--- a/dbus/dbuspassiveredundancy.cpp
+++ b/dbus/dbuspassiveredundancy.cpp
@@ -45,11 +45,11 @@
 
 } // namespace redundancy
 
-DbusPassiveRedundancy::DbusPassiveRedundancy(sdbusplus::bus::bus& bus) :
+DbusPassiveRedundancy::DbusPassiveRedundancy(sdbusplus::bus_t& bus) :
     match(bus,
           "type='signal',member='PropertiesChanged',arg0namespace='" +
               std::string(redundancy::interface) + "'",
-          std::move([this](sdbusplus::message::message& message) {
+          std::move([this](sdbusplus::message_t& message) {
               std::string objectName;
               std::unordered_map<
                   std::string,