K 10 svn:author V 3 mdf K 8 svn:date V 27 2011-05-24T16:04:35.877853Z K 7 svn:log V 190 MFC r221843: Note that the _SWAP operation is supported for all list/queue types. Also place STAILQ_REMOVE_HEAD in alphabetical order. Lastly, document the _SWAP macros. PR: kern/143033 END