Update golang.org/x/net commit hash to ef20fe5 (#388)

Author: renovate-bot

go.mod

@@ -8,6 +8,6 @@ require (
 	github.com/pkg/errors v0.8.1
 	github.com/stretchr/testify v1.4.0
 	github.com/urfave/cli v1.22.2
-	golang.org/x/net v0.0.0-20191125084936-ffdde1057850
+	golang.org/x/net v0.0.0-20191126235420-ef20fe5d7933
 	golang.org/x/time v0.0.0-20191024005414-555d28b269f0
 )

go.sum

@@ -46,6 +46,7 @@ golang.org/x/net v0.0.0-20191119073136-fc4aabc6c914 h1:MlY3mEfbnWGmUi4rtHOtNnnnN
 golang.org/x/net v0.0.0-20191119073136-fc4aabc6c914/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20191125084936-ffdde1057850 h1:Vq85/r8R9IdcUHmZ0/nQlUg1v15rzvQ2sHdnZAj/x7s=
 golang.org/x/net v0.0.0-20191125084936-ffdde1057850/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20191126235420-ef20fe5d7933/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

vendor/modules.txt

@@ -19,7 +19,7 @@ github.com/stretchr/testify/assert
 github.com/stretchr/testify/require
 # github.com/urfave/cli v1.22.2
 github.com/urfave/cli
-# golang.org/x/net v0.0.0-20191125084936-ffdde1057850
+# golang.org/x/net v0.0.0-20191126235420-ef20fe5d7933
 golang.org/x/net/idna
 # golang.org/x/text v0.3.0
 golang.org/x/text/secure/bidirule