Update golang.org/x/crypto commit hash to f99c8df (#311)

go.mod

@@ -16,7 +16,7 @@ require (
 	github.com/stretchr/testify v1.3.0
 	github.com/tcnksm/go-latest v0.0.0-20170313132115-e3007ae9052e
 	github.com/texttheater/golang-levenshtein v0.0.0-20180516184445-d188e65d659e
-	golang.org/x/crypto v0.0.0-20190601013024-20be4c3c3ed5
+	golang.org/x/crypto v0.0.0-20190610063039-f99c8df09eb5
 	golang.org/x/sys v0.0.0-20190610060253-301114b31cce // indirect
 	gopkg.in/yaml.v2 v2.2.2
 )

go.sum

@@ -148,8 +148,8 @@ golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9 h1:mKdxBk7AujPs8kU4m80U72
 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20190601013024-20be4c3c3ed5 h1:jIYWgmsqEyQc2c9DzR6bxjn120yn5kFDiwG5P2aGmh4=
-golang.org/x/crypto v0.0.0-20190601013024-20be4c3c3ed5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20190610063039-f99c8df09eb5 h1:pKAM7DlUhmM2KtWIigc8gn2hwgb23sNU+Ijj3E7iLL0=
+golang.org/x/crypto v0.0.0-20190610063039-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=