Clarify effect of huge_pages GUC

When Who What
2018-01-25 16:17:29 Peter Eisentraut (petere) Closed in commitfest 2018-01 with status: Committed
2018-01-23 18:15:47 Catalin Iacob (cataliniacob) New status: Ready for Committer
2018-01-23 17:01:32 Peter Eisentraut (petere) Added petere as committer
2018-01-09 05:44:58 Catalin Iacob (cataliniacob) Added cataliniacob as reviewer
2017-12-26 01:04:01 Thomas Munro (macdice) Changed authors to Thomas Munro (macdice)
2017-12-26 01:03:52 Thomas Munro (macdice) Attached mail thread CAEepm=3qzR-hfjepymohuC4XO5phxoSoipOjm6BEhnJHjNR+jg@mail.gmail.com
2017-12-26 01:03:52 Thomas Munro (macdice) Created patch record