Freshen yarn.lock

Author: wincent

yarn.lock

@@ -3344,9 +3344,9 @@ signal-exit@^3.0.0, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
 
-sinon@2.3.8:
-  version "2.3.8"
-  resolved "https://registry.yarnpkg.com/sinon/-/sinon-2.3.8.tgz#31de06fed8fba3a671e576dd96d0a5863796f25c"
+sinon@2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/sinon/-/sinon-2.4.1.tgz#021fd64b54cb77d9d2fb0d43cdedfae7629c3a36"
   dependencies:
     diff "^3.1.0"
     formatio "1.2.0"