[commit: ghc] ghc-8.4: Bump primitive submodule to 0.6.3.0 (b0271df)

[git at git.haskell.org]

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

On branch  : ghc-8.4
Link       : http://ghc.haskell.org/trac/ghc/changeset/b0271df6e00c60324e053143b4502fa93a52cda5/ghc

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

commit b0271df6e00c60324e053143b4502fa93a52cda5
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Thu Feb 15 11:42:35 2018 -0500

    Bump primitive submodule to 0.6.3.0


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

b0271df6e00c60324e053143b4502fa93a52cda5
 libraries/primitive | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/primitive b/libraries/primitive
index 260cc97..53f72ce 160000
--- a/libraries/primitive
+++ b/libraries/primitive
@@ -1 +1 @@
-Subproject commit 260cc9755ee6928876e5174998425cd5863c34a2
+Subproject commit 53f72ce69a4dfde5345cf5809a8b4a1993523367