Bug 95548 Editors page not sized properly on startup
build N20050517, open preferences dialog to editors page (under General). now close and open the dialog again and note that the dialog is too short.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
* @param parentShell
	 *            the parent shell
	 * @param manager
	 *            the preference manager
	 */
	public PreferenceDialog(Shell parentShell, PreferenceManager manager) {
		super(parentShell);
		setShellStyle(getShellStyle() | SWT.RESIZE | SWT.MAX);
		preferenceManager = manager;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.dialogs.Dialog#buttonPressed(int)
	 */
	protected void buttonPressed(int buttonId) {
		switch (buttonId) {
		case IDialogConstants.OK_ID: {
			okPressed();
			return;
		}
		case IDialogConstants.CANCEL_ID: {
			cancelPressed();
			return;
		}
		case IDialogConstants.HELP_ID: {
			helpPressed();
			return;
		}
		}