Upgrade to golang 1.13.1 (istio#379)

howardjohn · istio-testing · commit 05e85de465bf · 2019-09-26T19:55:05.000-07:00
diff --git a/docker/build-tools/Dockerfile b/docker/build-tools/Dockerfile
@@ -25,7 +25,7 @@
 # Binary tools
 #############
 
-FROM golang:1.13.0 as binary_tools_context
+FROM golang:1.13.1 as binary_tools_context
 
 # Pinned versions of stuff we pull in
 ENV COUNTERFEITER_VERSION=v6.2.2
