FetchAction: Fix FloggerFormatString pattern flagged by error prone

Build is failing with recent Error Prone version:

  FetchAction.java:135: error: [FloggerFormatString]
  extra format arguments: used 0, provided 3
        log.atSevere().withCause(e).log(
                                       ^
    (see https://errorprone.info/bugpattern/FloggerFormatString)

Change-Id: Ice44e15d86f7c07d79a996fca18677efc44400a0
diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/FetchAction.java b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/FetchAction.java
index 92cc180..a6fd8ec 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/FetchAction.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/FetchAction.java
@@ -133,10 +133,8 @@
           | RemoteConfigurationMissingException
           | TimeoutException e) {
         log.atSevere().withCause(e).log(
-            "Exception during the async fetch call for project {}, label {} and ref name {}",
-            project.get(),
-            input.label,
-            input.refName);
+            "Exception during the async fetch call for project %s, label %s and ref name %s",
+            project.get(), input.label, input.refName);
       }
     }
   }