Update Journal Entry Format

Journal entry variable names should be uppercase.

Change-Id: I3b100cf6f56fe233cebb19f561ee706b9b1da9bb
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/item_updater.cpp b/item_updater.cpp
index e7e3b36..490567c 100644
--- a/item_updater.cpp
+++ b/item_updater.cpp
@@ -168,8 +168,8 @@
             auto osRelease = iter.path() / OS_RELEASE_FILE;
             if (!fs::is_regular_file(osRelease))
             {
-                log<level::ERR>("Failed to read osRelease\n",
-                                entry("FileName=%s", osRelease.string()));
+                log<level::ERR>("Failed to read osRelease",
+                                entry("FILENAME=%s", osRelease.string()));
                 ItemUpdater::erase(id);
                 continue;
             }