go.mod: update x/sys to master

run:
  $ go get -u -d golang.org/x/sys@master
  $ go mod tidy

Change-Id: If8eaa7ec31971bca33155f3ed04db0ab26cf7697
Reviewed-on: https://go-review.googlesource.com/c/debug/+/207197
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/go.mod b/go.mod
index addabf8..f688f25 100644
--- a/go.mod
+++ b/go.mod
@@ -9,5 +9,5 @@
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/spf13/cobra v0.0.3
 	github.com/spf13/pflag v1.0.3 // indirect
-	golang.org/x/sys v0.0.0-20190312061237-fead79001313
+	golang.org/x/sys v0.0.0-20191113165036-4c7a9d0fe056
 )
diff --git a/go.sum b/go.sum
index 0942874..714a1b5 100644
--- a/go.sum
+++ b/go.sum
@@ -12,3 +12,5 @@
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313 h1:pczuHS43Cp2ktBEEmLwScxgjWsBSzdaQiKzUyf3DTTc=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20191113165036-4c7a9d0fe056 h1:dHtDnRWQtSx0Hjq9kvKFpBh9uPPKfQN70NZZmvssGwk=
+golang.org/x/sys v0.0.0-20191113165036-4c7a9d0fe056/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=