[commit: ghc] wip/fix-docs: Bump hadrian submodule (8a3adbc)

[git at git.haskell.org]

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

On branch  : wip/fix-docs
Link       : http://ghc.haskell.org/trac/ghc/changeset/8a3adbcbaefafa35ca1b2c724c5fb3e614bada8b/ghc

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

commit 8a3adbcbaefafa35ca1b2c724c5fb3e614bada8b
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Sun Aug 5 10:24:30 2018 -0400

    Bump hadrian submodule


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8a3adbcbaefafa35ca1b2c724c5fb3e614bada8b
 hadrian | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hadrian b/hadrian
index a63ad32..4265e3a 160000
--- a/hadrian
+++ b/hadrian
@@ -1 +1 @@
-Subproject commit a63ad3294b5d51eec50d454810a314c0b2a696c7
+Subproject commit 4265e3aab7df92722b81148cf8bf3954ebfc2d21