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: Iaf9bb4a5ea6a04cf1c65fc0f32b1cca833ccdb71
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/vpd-manager/editor_impl.cpp b/vpd-manager/editor_impl.cpp
index 27f1a80..4d81278 100644
--- a/vpd-manager/editor_impl.cpp
+++ b/vpd-manager/editor_impl.cpp
@@ -514,7 +514,7 @@
         method.append("reboot-guard-enable.service", "replace");
         bus.call_noreply(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         std::string errMsg =
             "Bus call to enable BMC reboot failed for reason: ";
@@ -535,7 +535,7 @@
         method.append("reboot-guard-disable.service", "replace");
         bus.call_noreply(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         using namespace phosphor::logging;
         using InternalFailure =