Merge pull request #2724 from xamarin/bump-78c325a

Updated reference to mono/mono@bf21d1a
2017-09-20 13:13:50 -04:00 · 2017-09-20 13:13:50 -04:00 · 9a9f05419c
--- a/external/mono
+++ b/external/mono
@ -1 +1 @@
-Subproject commit 5fb9bcff57f0959fd3617c6a3f7d0a58eb63fe8e
+Subproject commit bf21d1a2777b9505f3f0c26f51d3b600f296af38