[commit: ghc] master: Fix typo [skip ci] (84c77a6)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/84c77a675ccc4b6bbd0f271d7859266872eab777/ghc

>---------------------------------------------------------------

commit 84c77a675ccc4b6bbd0f271d7859266872eab777
Author: Alexandre Esteves <alexandre.fmp.esteves at gmail.com>
Date:   Fri Mar 15 18:42:50 2019 -0400

    Fix typo [skip ci]


>---------------------------------------------------------------

84c77a675ccc4b6bbd0f271d7859266872eab777
 libraries/base/Data/OldList.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/base/Data/OldList.hs b/libraries/base/Data/OldList.hs
index 82cc9fa..73d81df 100644
--- a/libraries/base/Data/OldList.hs
+++ b/libraries/base/Data/OldList.hs
@@ -1085,7 +1085,7 @@ permutations xs0        =  xs0 : perms xs0 []
 -- It is a special case of 'sortBy', which allows the programmer to supply
 -- their own comparison function.
 --
--- Elements are arranged from from lowest to highest, keeping duplicates in
+-- Elements are arranged from lowest to highest, keeping duplicates in
 -- the order they appeared in the input.
 --
 -- >>> sort [1,6,4,3,2,5]