Fix some journal metadata

Code shouldn't use MESSAGE in journal metadata as MESSAGE is
already taken by the journal message field.

Change-Id: I6b1e9033b2028e4fff67cbbeb1824f260657c247
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/src/resolve_errors.cpp b/src/resolve_errors.cpp
index e932aff..caa8cf8 100644
--- a/src/resolve_errors.cpp
+++ b/src/resolve_errors.cpp
@@ -72,7 +72,7 @@
     {
         log<level::ERR>("Failed getting callout fault associations",
                         entry("CALLOUT=%s", callout.c_str()),
-                        entry("MESSAGE=%s", e.what()));
+                        entry("ERROR=%s", e.what()));
     }
 }
 
@@ -107,7 +107,7 @@
     {
         log<level::ERR>("Unable to resolve error log entry",
                         entry("ENTRY=%s", logEntry.c_str()),
-                        entry("MESSAGE=%s", e.what()));
+                        entry("ERROR=%s", e.what()));
     }
 }