Update out-of-date comment in vacuumlazy.c
Commit
15c121b3ed7eb2f290e19533e41ccca734d23574 seems to have
overlooked the need to trim this part of the comment.
Pavan Deolasee
Discussion: http://postgr.es/m/CABOikdPq_9+cWRNZ0RLKTwuZyj=uL85X=Usifa-CbPee1ZCM5A@mail.gmail.com