123/257: gnu: ghc-cryptohash-sha1: Update Cabal file to r2.

[Ricardo Wurmus]

rekado pushed a commit to branch wip-haskell
in repository guix.

commit e628a204645399986843b021395c013aa14f9208
Author: Timothy Sample <address@hidden>
Date:   Fri Aug 31 15:07:32 2018 -0400

    gnu: ghc-cryptohash-sha1: Update Cabal file to r2.
    
    * gnu/packages/haskell-crypto.scm (ghc-cryptohash-sha1): Update Cabal
    file to r2.
---
 gnu/packages/haskell-crypto.scm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/haskell-crypto.scm b/gnu/packages/haskell-crypto.scm
index b1db19b..87e6cd3 100644
--- a/gnu/packages/haskell-crypto.scm
+++ b/gnu/packages/haskell-crypto.scm
@@ -238,7 +238,9 @@ that hides the C implementation.")
          "1aqdxdhxhl9jldh951djpwxx8z7gzaqspxl7iwpl84i5ahrsyy9w"))))
     (build-system haskell-build-system)
     (arguments
-     `(#:tests? #f)) ; tests require old version of ghc-hunit (0.9)
+     `(#:cabal-revision
+       ("2" "0xas0nbq9bfdzlj6k565ibizv1cqvzfzsdj6q9pdiiwyxqblqc3m")
+       #:tests? #f)) ; tests require old version of ghc-hunit (0.9)
     (native-inputs `(("ghc-base16-bytestring" ,ghc-base16-bytestring)
                      ("ghc-sha" ,ghc-sha)
                      ("ghc-tasty" ,ghc-tasty)