NIFI-730:

- Fixing capitalization to remain consistent.

nifi-api/src/main/java/org/apache/nifi/controller/queue/DropFlowFileState.java

@@ -21,11 +21,11 @@ package org.apache.nifi.controller.queue;
  */
 public enum DropFlowFileState {
 
-    WAITING_FOR_LOCK("Waiting for Destination Component to complete its action"),
+    WAITING_FOR_LOCK("Waiting for destination component to complete its action"),
     DROPPING_FLOWFILES("Dropping FlowFiles from queue"),
     FAILURE("Failed"),
-    CANCELED("Canceled by User"),
-    COMPLETE("Completed Successfully");
+    CANCELED("Canceled by user"),
+    COMPLETE("Completed successfully");
 
     private final String description;
 

nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-ui/src/main/webapp/js/nf/canvas/nf-actions.js

@@ -895,7 +895,7 @@ nf.Actions = (function () {
             // prompt the user before emptying the queue
             nf.Dialog.showYesNoDialog({
                 headerText: 'Empty Queue',
-                dialogContent: 'Are you sure you want to empty this queue? All flowfiles waiting at the time of the request will be removed.',
+                dialogContent: 'Are you sure you want to empty this queue? All FlowFiles waiting at the time of the request will be removed.',
                 overlayBackground: false,
                 noText: 'Cancel',
                 yesText: 'Empty',