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: Ie7375047bd567aa052d3bd35a6dd7008779a05b4
diff --git a/src/manufacturingcommands.cpp b/src/manufacturingcommands.cpp
index 975484f..6aed0e9 100644
--- a/src/manufacturingcommands.cpp
+++ b/src/manufacturingcommands.cpp
@@ -227,7 +227,7 @@
         *reply = ipmi::getDbusProperty(*getSdBus(), service, path, interface,
                                        propertyName);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         phosphor::logging::log<phosphor::logging::level::INFO>(
             "ERROR: getProperty");
@@ -248,7 +248,7 @@
         ipmi::setDbusProperty(*getSdBus(), service, path, interface,
                               propertyName, value);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         phosphor::logging::log<phosphor::logging::level::INFO>(
             "ERROR: setProperty");
@@ -269,7 +269,7 @@
         method.append(pidControlService, "replace");
         auto reply = dbus->call(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         phosphor::logging::log<phosphor::logging::level::INFO>(
             "ERROR: phosphor-pid-control service start or stop failed");