HADOOP-18387. Fix incorrect placeholder in hadoop-common (#4679). Contributed by fanshilun.

Author: slfan1989

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/DelegationTokenRenewer.java

@@ -256,9 +256,8 @@ public <T extends FileSystem & Renewable> void removeRenewAction(
       try {
         action.cancel();
       } catch (InterruptedException ie) {
-        LOG.error("Interrupted while canceling token for " + fs.getUri()
-            + "filesystem");
-        LOG.debug("Exception in removeRenewAction: {}", ie);
+        LOG.error("Interrupted while canceling token for {} filesystem.", fs.getUri());
+        LOG.debug("Exception in removeRenewAction.", ie);
       }
     }
   }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-catalog/hadoop-yarn-applications-catalog-webapp/src/main/java/org/apache/hadoop/yarn/appcatalog/application/YarnServiceClient.java

@@ -61,7 +61,7 @@ public YarnServiceClient() {
     try {
       asc = new ApiServiceClient(conf);
     } catch (Exception e) {
-      LOG.error("Error initialize YARN Service Client: {}", e);
+      LOG.error("Error initialize YARN Service Client.", e);
     }
   }