[commit: ghc] master: Declare proper spec version in `base.cabal` (86c50a1)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/86c50a16e6a17349a7662067232236e38e46ba42/ghc

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

commit 86c50a16e6a17349a7662067232236e38e46ba42
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Sat Nov 11 17:40:15 2017 +0100

    Declare proper spec version in `base.cabal`
    
    This is a follow-up to ba2ae2c8729d5aef2aeb7fb32d6c0ea2a465ea25
    which started relying on a new Cabal feature requiring the
    the cabal spec version declaration to be updated accordingly.


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

86c50a16e6a17349a7662067232236e38e46ba42
 libraries/base/base.cabal | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libraries/base/base.cabal b/libraries/base/base.cabal
index e6f6420..8817f69 100644
--- a/libraries/base/base.cabal
+++ b/libraries/base/base.cabal
@@ -1,6 +1,8 @@
+cabal-version:  2.1
 name:           base
 version:        4.11.0.0
 -- NOTE: Don't forget to update ./changelog.md
+
 license:        BSD3
 license-file:   LICENSE
 maintainer:     libraries at haskell.org
@@ -11,7 +13,6 @@ description:
     This package contains the "Prelude" and its support libraries,
     and a large collection of useful libraries ranging from data
     structures to parsing combinators and debugging utilities.
-cabal-version:  >=1.10
 build-type:     Configure
 
 extra-tmp-files: