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: I223d58649a21565678bd7ef78d955b30d3fd6d84
diff --git a/manager/group.hpp b/manager/group.hpp
index 520ba43..aec0e85 100644
--- a/manager/group.hpp
+++ b/manager/group.hpp
@@ -41,8 +41,8 @@
      * @param[in] serialize - Serialize object
      * @param[in] callBack  - Custom callback when LED group is asserted
      */
-    Group(sdbusplus::bus::bus& bus, const std::string& objPath,
-          Manager& manager, Serialize& serialize,
+    Group(sdbusplus::bus_t& bus, const std::string& objPath, Manager& manager,
+          Serialize& serialize,
           std::function<void(Group*, bool)> callBack = nullptr) :
 
         GroupInherit(bus, objPath.c_str(), GroupInherit::action::defer_emit),
diff --git a/manager/json-config.hpp b/manager/json-config.hpp
index 3b836a1..2c4e16d 100644
--- a/manager/json-config.hpp
+++ b/manager/json-config.hpp
@@ -34,8 +34,7 @@
      * @param[in] bus       - The D-Bus object
      * @param[in] event     - sd event handler
      */
-    JsonConfig(sdbusplus::bus::bus& bus, sdeventplus::Event& event) :
-        event(event)
+    JsonConfig(sdbusplus::bus_t& bus, sdeventplus::Event& event) : event(event)
     {
         match = std::make_unique<sdbusplus::bus::match_t>(
             bus,
@@ -93,7 +92,7 @@
      *
      * @param[in] msg - The D-Bus message contents
      */
-    void ifacesAddedCallback(sdbusplus::message::message& msg)
+    void ifacesAddedCallback(sdbusplus::message_t& msg)
     {
         sdbusplus::message::object_path path;
         std::unordered_map<
@@ -183,7 +182,7 @@
                     }
                     confFile.clear();
                 }
-                catch (const sdbusplus::exception::exception& e)
+                catch (const sdbusplus::exception_t& e)
                 {
                     // Property unavailable on object.
                     lg2::error(
@@ -195,7 +194,7 @@
                 }
             }
         }
-        catch (const sdbusplus::exception::exception& e)
+        catch (const sdbusplus::exception_t& e)
         {
             lg2::error(
                 "Failed to call the SubTreePaths method, ERROR = {ERROR}, INTERFACE = {INTERFACE}",
diff --git a/manager/lamptest/lamptest.cpp b/manager/lamptest/lamptest.cpp
index 99d0318..57e5a33 100644
--- a/manager/lamptest/lamptest.cpp
+++ b/manager/lamptest/lamptest.cpp
@@ -142,7 +142,7 @@
             period = std::get<uint16_t>(properties["Period"]);
             dutyOn = std::get<uint8_t>(properties["DutyOn"]);
         }
-        catch (const sdbusplus::exception::exception& e)
+        catch (const sdbusplus::exception_t& e)
         {
             lg2::error(
                 "Failed to get All properties, ERROR = {ERROR}, PATH = {PATH}",
@@ -254,7 +254,7 @@
                                 "xyz.openbmc_project.Led.Group", "Asserted",
                                 assertedValue);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         lg2::error(
             "Failed to set Asserted property, ERROR = {ERROR}, PATH = {PATH}",
diff --git a/manager/led-main.cpp b/manager/led-main.cpp
index a6f8f82..86c13f5 100644
--- a/manager/led-main.cpp
+++ b/manager/led-main.cpp
@@ -45,7 +45,7 @@
     phosphor::led::Manager manager(bus, systemLedMap);
 
     /** @brief sd_bus object manager */
-    sdbusplus::server::manager::manager objManager(bus, OBJPATH);
+    sdbusplus::server::manager_t objManager(bus, OBJPATH);
 
     /** @brief vector of led groups */
     std::vector<std::unique_ptr<phosphor::led::Group>> groups;
diff --git a/manager/manager.hpp b/manager/manager.hpp
index 2fbc7f2..ac00d76 100644
--- a/manager/manager.hpp
+++ b/manager/manager.hpp
@@ -76,7 +76,7 @@
      *  @param [in] bus       - sdbusplus handler
      *  @param [in] GroupMap - LEDs group layout
      */
-    Manager(sdbusplus::bus::bus& bus, const GroupMap& ledLayout) :
+    Manager(sdbusplus::bus_t& bus, const GroupMap& ledLayout) :
         ledMap(ledLayout), bus(bus)
     {
         // Nothing here
@@ -126,7 +126,7 @@
 
   private:
     /** @brief sdbusplus handler */
-    sdbusplus::bus::bus& bus;
+    sdbusplus::bus_t& bus;
 
     /** Map of physical LED path to service name */
     std::unordered_map<std::string, std::string> phyLeds{};