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-rw-r--r--Utility/HumanTime.hs5
1 files changed, 3 insertions, 2 deletions
diff --git a/Utility/HumanTime.hs b/Utility/HumanTime.hs
index fe7cf22a9..77d846d97 100644
--- a/Utility/HumanTime.hs
+++ b/Utility/HumanTime.hs
@@ -1,8 +1,9 @@
{- Time for humans.
-
- Copyright 2012-2013 Joey Hess <id@joeyh.name>
+ - Copyright 2022 Benjamin Barenblat <bbarenblat@gmail.com>
-
- - License: BSD-2-clause
+ - License: Apache-2.0
-}
module Utility.HumanTime (
@@ -44,7 +45,7 @@ daysToDuration :: Integer -> Duration
daysToDuration i = Duration $ i * dsecs
{- Parses a human-input time duration, of the form "5h", "1m", "5h1m", etc -}
-parseDuration :: Monad m => String -> m Duration
+parseDuration :: MonadFail m => String -> m Duration
parseDuration = maybe parsefail (return . Duration) . go 0
where
go n [] = return n