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
return false;
		
		if (node.getPage() == null)
			createPage(node);
		if (node.getPage() == null)
			return false;
		IPreferencePage newPage = getPage(node);
		if (newPage == currentPage)
			return true;
		if (currentPage != null) {
			if (!currentPage.okToLeave())
				return false;
		}
		IPreferencePage oldPage = currentPage;
		currentPage = newPage;
		
		currentPage.setContainer(this);
		
		
		if (currentPage.getControl() == null) {
			final boolean[] failed = { false };
			SafeRunnable.run(new ISafeRunnable() {
				public void handleException(Throwable e) {
					failed[0] = true;
				}
				public void run() {
					createPageControl(currentPage, pageContainer);
				}
			});
			if (failed[0])