Print failing object path after failed bus lookup

Change-Id: I599d8297b4d2fd45831443685ea5b7d53f1515b6
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/ipmid.cpp b/ipmid.cpp
index 9e267bc..84d37ea 100644
--- a/ipmid.cpp
+++ b/ipmid.cpp
@@ -274,7 +274,8 @@
 
     rc = mapper_get_service(bus, settings_host_object, &busname);
     if (rc < 0) {
-        fprintf(stderr, "Failed to get HOST busname: %s\n", strerror(-rc));
+        fprintf(stderr, "Failed to get %s busname: %s\n",
+                settings_host_object, strerror(-rc));
         goto cleanup;
     }
     rc = sd_bus_call_method(bus,