Fix an incorrect logging

It was incorrectly using "%d" to log a "METHOD" string.
Fix it.

Signed-off-by: Lei YU <mine260309@gmail.com>
Change-Id: I792f82feb894f5d5a83c4d4f60f52135f6d08dd0
diff --git a/src/utils.cpp b/src/utils.cpp
index 8d782ab..949a1e1 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -115,10 +115,9 @@
     }
     catch (const sdbusplus::exception::SdBusError& ex)
     {
-        log<level::ERR>("Mapper call failed", entry("METHOD=%d", "GetObject"),
-                        entry("PATH=%s", path),
+        log<level::ERR>("GetObject call failed", entry("PATH=%s", path),
                         entry("INTERFACE=%s", interface));
-        throw std::runtime_error("Mapper call failed");
+        throw std::runtime_error("GetObject call failed");
     }
 }