Update license in files (#163)

Author: chshersh

co-log-core/co-log-core.cabal

@@ -27,7 +27,7 @@ license:             MPL-2.0
 license-file:        LICENSE
 author:              Dmitrii Kovanikov
 maintainer:          Kowainik <[email protected]>
-copyright:           2018-2019 Kowainik
+copyright:           2018-2020 Kowainik
 category:            Logging, Contravariant, Comonad
 build-type:          Simple
 stability:           stable

co-log-core/src/Colog/Core.hs

@@ -1,6 +1,6 @@
 {- |
-Copyright:  (c) 2018-2019 Kowainik
-License:    MPL-2.0
+Copyright:  (c) 2018-2020 Kowainik
+SPDX-License-Identifier: MPL-2.0
 Maintainer: Kowainik <[email protected]>
 
 Exports all core functionality. @co-log-core@ is a lightweight package that

co-log-core/src/Colog/Core/Action.hs

@@ -2,8 +2,8 @@
 {-# LANGUAGE Rank2Types #-}
 
 {- |
-Copyright:  (c) 2018-2019 Kowainik
-License:    MPL-2.0
+Copyright:  (c) 2018-2020 Kowainik
+SPDX-License-Identifier: MPL-2.0
 Maintainer: Kowainik <[email protected]>
 
 Implements core data types and combinators for logging actions.
@@ -58,7 +58,7 @@ module Colog.Core.Action
        , hoistLogAction
        ) where
 
-import Control.Monad (when, (>=>), (<=<))
+import Control.Monad (when, (<=<), (>=>))
 import Data.Coerce (coerce)
 import Data.Foldable (fold, for_)
 import Data.List.NonEmpty (NonEmpty (..))

co-log-core/src/Colog/Core/Class.hs

@@ -3,8 +3,8 @@
 {-# LANGUAGE Rank2Types            #-}
 
 {- |
-Copyright:  (c) 2018-2019 Kowainik
-License:    MPL-2.0
+Copyright:  (c) 2018-2020 Kowainik
+SPDX-License-Identifier: MPL-2.0
 Maintainer: Kowainik <[email protected]>
 
 Provides type class for values that has access to 'LogAction'.

co-log-core/src/Colog/Core/IO.hs

@@ -1,6 +1,6 @@
 {- |
-Copyright:  (c) 2018-2019 Kowainik
-License:    MPL-2.0
+Copyright:  (c) 2018-2020 Kowainik
+SPDX-License-Identifier: MPL-2.0
 Maintainer: Kowainik <[email protected]>
 
 Introduces logging actions working in 'MonadIO'. These actions are very basic

co-log-core/src/Colog/Core/Severity.hs

@@ -1,8 +1,8 @@
 {-# LANGUAGE PatternSynonyms #-}
 
 {- |
-Copyright:  (c) 2018-2019 Kowainik
-License:    MPL-2.0
+Copyright:  (c) 2018-2020 Kowainik
+SPDX-License-Identifier: MPL-2.0
 Maintainer: Kowainik <[email protected]>
 
 This module introduces 'Severity' data type for expressing how severe the