Fixes issue 3940

Add action name to call to super constructor (forgot to do this when switching
from the old action)

Change-Id: I22716834ecd9a14a3c36cf2c9c13b71f6d825923
Reviewed-on: http://gerrit.dmdirc.com/1035
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>
Reviewed-by: Chris Smith <chris@dmdirc.com>

src/com/dmdirc/addons/ui_swing/textpane/TextPaneCopyAction.java

@@ -45,6 +45,7 @@ public class TextPaneCopyAction extends AbstractAction {
      * @param textpane Textpane
      */
     public TextPaneCopyAction(final TextPane textpane) {
+        super("Copy");
         this.textpane = textpane;
     }