[xbuild] Bump buildtools to get support for netstandard 1.6
authorAnkit Jain <ankit.jain@xamarin.com>
Wed, 14 Dec 2016 19:54:35 +0000 (14:54 -0500)
committerAnkit Jain <ankit.jain@xamarin.com>
Wed, 14 Dec 2016 19:57:33 +0000 (14:57 -0500)
commitc952badd43d182d58da94c9976ebd8f34e5d805d
tree5fb0a4ac84e294d073b573430447739d50fb3499
parentfaf2a56710b105f668bab8b71565d66297e1e340
[xbuild] Bump buildtools to get support for netstandard 1.6

https://github.com/mono/buildtools/commit/9b6ee8686be55a983d886938165b6206cda50772
external/buildtools