Bug 94674 [Preferences] Preferences dialog separator under Title for pages does not stretch all the way across
The separator under the Header title for a preference page should stretch from the border of the sash to the far right with no margins in between.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
update();
		return true;
	}
	/**
	 * Create the page for the node.
	 * @param node
	 * 
	 * @since 3.1
	 */
	protected void createPage(IPreferenceNode node) {
		node.createPage();
	}
	/**
	 * Get the page for the node.
	 * @param node
	 * @return IPreferencePage
	 * 
	 * @since 3.1
	 */
	protected IPreferencePage getPage(IPreferenceNode node) {
		return node.getPage();
	}
	/**
	 * Shows the "Page Flipping abort" dialog.
	 */
	void showPageFlippingAbortDialog() {
		MessageDialog.openError(getShell(), JFaceResources
				.getString("AbortPageFlippingDialog.title"), 
				JFaceResources.getString("AbortPageFlippingDialog.message"));