Shorten the "Reporting to Graphite... " info log message

Change-Id: I4ce3689c0694c96374f3f62893a79adc21ee4352
diff --git a/src/main/java/com/googlesource/gerrit/plugins/metricsreporters/GerritGraphiteReporter.java b/src/main/java/com/googlesource/gerrit/plugins/metricsreporters/GerritGraphiteReporter.java
index 4849d49..7ed8ed4 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/metricsreporters/GerritGraphiteReporter.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/metricsreporters/GerritGraphiteReporter.java
@@ -71,7 +71,7 @@
       }
     }
     log.info(
-        String.format("Reporting to Graphite at host %s on port %d with prefix %s",
+        String.format("Reporting to Graphite at %s:%d with prefix %s",
         host, port, prefix));
 
     graphiteReporter = GraphiteReporter.forRegistry(registry)