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
labelY += messageLabel.computeSize(SWT.DEFAULT,SWT.DEFAULT).y;
	
	titleImageLargest = titleY > labelY;
}
	
/**
 * Set the layout values for the messageLabel, messageImageLabel and 
 * fillerLabel for the case where there is a normal message.
 * @param verticalSpacing int The spacing between widgets on the vertical axis.
 * @param horizontalSpacing int The spacing between widgets on the horizontal axis.
 */
private void setLayoutsForNormalMessage(
	int verticalSpacing,
	int horizontalSpacing) {
	FormData messageImageData = new FormData();
	messageImageData.top = new FormAttachment(titleLabel,verticalSpacing);
	messageImageData.left = new FormAttachment(0,H_GAP_IMAGE);
	messageImageLabel.setLayoutData(messageImageData);
	
	FormData messageLabelData = new FormData();
	messageLabelData.top = new FormAttachment(titleLabel,verticalSpacing);
	messageLabelData.right = new FormAttachment(titleImage);
	messageLabelData.left = new FormAttachment(messageImageLabel,horizontalSpacing);
	
	if(titleImageLargest)
		messageLabelData.bottom = new FormAttachment(titleImage,0,SWT.BOTTOM);
		
	messageLabel.setLayoutData(messageLabelData);
	
	FormData fillerData = new FormData();