Bug 38009 [Wizards] Wizard banner text should wrap
Currently if wizard banner text is too long for the line, it's truncated. Hovering over it produces a pop-up with the complete text (unless I suppose it's too long to fit on the screen). In any case this looks really bad. If the text is too long for one line, it should be wrapped to multiple lines. A good UI designer isn't going to write wizard banner text that's enormously long, but the wizard framework should be able to handle it.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/TitleAreaDialog.java
private void updateMessage(String newMessage) {
	
	
	if(newMessage != null && newMessage.indexOf('\n') == -1)
		newMessage = newMessage + "\n "; 
		
	messageLabel.setText(newMessage);
}
/**
 * Sets the title to be shown in the title area of this dialog.
 *
 * @param newTitle the title show 
 */
public void setTitle(String newTitle) {
	if (titleLabel == null)
		return;
	String title = newTitle;
	if (title == null)
		title = "";
	titleLabel.setText(title);
}
/**
 * Sets the title bar color for this dialog.
 *
 * @param color the title bar color
 */
public void setTitleAreaColor(RGB color) {
	titleAreaRGB = color;
}
/**