convert all per-uuid log files to use Builder

Mostly didn't push the ByteStrings down very deep, but all of these log
files are not written to frequently at all, so slight remaining
innefficiency doesn't matter.

In Logs.UUID, removed the fixBadUUID code that cleaned up after a bug in
git-annex versions 3.20111105-3.20111110. In the unlikely event that a repo was
last touched by that ancient git-annex version, the descriptions of remotes
would appear missing when used with this version of git-annex. That is such minor
breakage, and so unlikely to still be a problem for any repos, that it was not
worth forward-porting that code to ByteString.

Logs/UUID.hs

@@ -2,7 +2,7 @@
  -
  - uuid.log stores a list of known uuids, and their descriptions.
  -
- - Copyright 2010-2012 Joey Hess <id@joeyh.name>
+ - Copyright 2010-2019 Joey Hess <id@joeyh.name>
  -
  - Licensed under the GNU GPL version 3 or higher.
  -}
@@ -30,36 +30,9 @@ describeUUID :: UUID -> UUIDDesc -> Annex ()
 describeUUID uuid desc = do
 	c <- liftIO currentVectorClock
 	Annex.Branch.change uuidLog $
-		encodeBL . showLog id . changeLog c uuid (fromUUIDDesc desc) . fixBadUUID . parseLog Just . decodeBL
-
-{- Temporarily here to fix badly formatted uuid logs generated by
- - versions 3.20111105 and 3.20111025. 
- -
- - Those logs contain entries with the UUID and description flipped.
- - Due to parsing, if the description is multiword, only the first
- - will be taken to be the UUID. So, if the UUID of an entry does
- - not look like a UUID, and the last word of the description does,
- - flip them back.
- -}
-fixBadUUID :: Log String -> Log String
-fixBadUUID = M.fromList . map fixup . M.toList
-  where
-	fixup (k, v)
-		| isbad = (fixeduuid, LogEntry (newertime v) fixedvalue)
-		| otherwise = (k, v)
-	  where
-		kuuid = fromUUID k
-		isbad = not (isuuid kuuid) && not (null ws) && isuuid lastword
-		ws = words $ value v
-		lastword = Prelude.last ws
-		fixeduuid = toUUID lastword
-		fixedvalue = unwords $ kuuid: Prelude.init ws
-	-- For the fixed line to take precidence, it should be
-	-- slightly newer, but only slightly.
-	newertime (LogEntry (VectorClock c) _) = VectorClock (c + minimumPOSIXTimeSlice)
-	newertime (LogEntry Unknown _) = VectorClock minimumPOSIXTimeSlice
-	minimumPOSIXTimeSlice = 0.000001
-	isuuid s = length s == 36 && length (splitc '-' s) == 5
+		buildLog buildUUIDDesc 
+			. changeLog c uuid desc 
+			. parseLog (Just . UUIDDesc . encodeBS) . decodeBL
 
 {- The map is cached for speed. -}
 uuidDescMap :: Annex UUIDDescMap