Fix regression from r39373: * marks were changed to *? , which broke the colon in...

Fix regression from r39373: * marks were changed to *? , which broke the colon in comments because the regexp did not recognize the post text. Reverting to the original regexp. Tested on some comments (as well as on Wikipedia:Translation/*/Lang/de mentioned in the previous commit), but if it breaks anything, please revert and fix in another way.