[commit: ghc] ghc-8.0: Update directory submodule to v1.2.5.1 release (d977fb8)

[git at git.haskell.org]

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

On branch  : ghc-8.0
Link       : http://ghc.haskell.org/trac/ghc/changeset/d977fb89d624bda57a73737328ce9f58ffec0599/ghc

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

commit d977fb89d624bda57a73737328ce9f58ffec0599
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Sun Feb 14 23:53:37 2016 +0100

    Update directory submodule to v1.2.5.1 release
    
    (cherry picked from commit 4bba19a56ddf98dc569878ea052e312487122d70)


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

d977fb89d624bda57a73737328ce9f58ffec0599
 libraries/directory | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/directory b/libraries/directory
index 5696798..33ce1ca 160000
--- a/libraries/directory
+++ b/libraries/directory
@@ -1 +1 @@
-Subproject commit 5696798a0adbf3401688f223fe64a4aa6378e87b
+Subproject commit 33ce1ca6bef97b60957e4763b046eac9a982ead0