Fix incorrect code block generation when previous line contains whitespace (Fixes #39)
Fix incorrect code block generation when previous line contains whitespace (Fixes #39)

silverstripe/silverstripe-docsviewer,dhensby/silverstripe-docsviewer,camfindlay/silverstripe-docsviewer,silverstripe/silverstripe-docsviewer,camfindlay/silverstripe-docsviewer,dhensby/silverstripe-docsviewer