avoid insertWith' depreaction warning

Switch to Data.Map.Strict everywhere that used it.

There are still lots of lazy maps in git-annex. I think switching these
is safe. The risk is that there might be a map that is used in a way
that relies on the values not being evaluated to WHNF, and switching to
strict might result in bad performance or memory use. So, I have not
switched everything.

Logs/MapLog.hs

@@ -21,7 +21,7 @@ import Common
 import Annex.VectorClock
 import Logs.Line
 
-import qualified Data.Map as M
+import qualified Data.Map.Strict as M
 
 data LogEntry v = LogEntry
 	{ changed :: VectorClock
@@ -56,7 +56,7 @@ changeMapLog c f v = M.insert f $ LogEntry c v
 {- Only add an LogEntry if it's newer (or at least as new as) than any
  - existing LogEntry for a field. -}
 addMapLog :: Ord f => f -> LogEntry v -> MapLog f v -> MapLog f v
-addMapLog = M.insertWith' best
+addMapLog = M.insertWith best
 
 {- Converts a MapLog into a simple Map without the timestamp information.
  - This is a one-way trip, but useful for code that never needs to change

Logs/UUID.hs

@@ -29,7 +29,7 @@ import Logs
 import Logs.UUIDBased
 import qualified Annex.UUID
 
-import qualified Data.Map as M
+import qualified Data.Map.Strict as M
 
 {- Records a description for a uuid in the log. -}
 describeUUID :: UUID -> String -> Annex ()
@@ -79,7 +79,7 @@ uuidMapLoad :: Annex UUIDMap
 uuidMapLoad = do
 	m <- (simpleMap . parseLog Just) <$> Annex.Branch.get uuidLog
 	u <- Annex.UUID.getUUID
-	let m' = M.insertWith' preferold u "" m
+	let m' = M.insertWith preferold u "" m
 	Annex.changeState $ \s -> s { Annex.uuidmap = Just m' }
 	return m'
   where