09/20: gnu: ghc-cryptohash-sha1: Update Cabal file to r4.

[guix-commits]

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

commit 08939de8fc196a7702df127929d33712ca57f5b9
Author: Timothy Sample <address@hidden>
Date:   Fri Nov 1 14:17:36 2019 -0400

    gnu: ghc-cryptohash-sha1: Update Cabal file to r4.
    
    * gnu/packages/haskell-crypto.scm (ghc-cryptohash-sha1): Update Cabal
    file to r4.
---
 gnu/packages/haskell-crypto.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gnu/packages/haskell-crypto.scm b/gnu/packages/haskell-crypto.scm
index b7a1b1f..6c0ff0d 100644
--- a/gnu/packages/haskell-crypto.scm
+++ b/gnu/packages/haskell-crypto.scm
@@ -240,7 +240,7 @@ that hides the C implementation.")
     (build-system haskell-build-system)
     (arguments
      `(#:cabal-revision
-       ("2" "0xas0nbq9bfdzlj6k565ibizv1cqvzfzsdj6q9pdiiwyxqblqc3m")
+       ("4" "0qb2wasfc4dpf6f9ahvhlv8njb3p3p9iwblg4032ssi95cg85718")
        #:tests? #f)) ; tests require old version of ghc-hunit (0.9)
     (native-inputs `(("ghc-base16-bytestring" ,ghc-base16-bytestring)
                      ("ghc-sha" ,ghc-sha)