[commit: ghc] master: Update bytestring submodule to 0.10.8.1 release tag (c974927)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/c974927318c177483b47d62af6c61e5a4d6f59e1/ghc

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

commit c974927318c177483b47d62af6c61e5a4d6f59e1
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Sun May 15 23:19:18 2016 +0200

    Update bytestring submodule to 0.10.8.1 release tag


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

c974927318c177483b47d62af6c61e5a4d6f59e1
 libraries/bytestring | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/bytestring b/libraries/bytestring
index 0ee4596..84253da 160000
--- a/libraries/bytestring
+++ b/libraries/bytestring
@@ -1 +1 @@
-Subproject commit 0ee45965232f6838d5bbbf9f0fe666a32a79a6da
+Subproject commit 84253da85952765dd7631e467cc2b1d1bba03f24