set LANG to 'C' for "make test-cmd"

Now we support multi-languages: https://github.com/kubernetes/kubernetes/tree/master/translations But some tests support only English. This test fails when LANG is set to zh_CN.UTF-8: https://github.com/kubernetes/kubernetes/blob/master/hack/make-rules/test-cmd-util.sh#L2838 The expected err string is translated to Chinese: https://github.com/kubernetes/kubernetes/blob/master/translations/kubectl/zh_CN/LC_MESSAGES/k8s.po#L82

set LANG to 'C' for "make test-cmd"
58c62007 · Cao Shufeng · da5edc11 · 58c62007
Commit 58c62007 authored May 26, 2017 by Cao Shufeng
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test-cmd-util.sh hack/make-rules/test-cmd-util.sh +3 -0

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--- a/hack/make-rules/test-cmd-util.sh
+++ b/hack/make-rules/test-cmd-util.sh
@@ -20,6 +20,9 @@ set -o errexit
 set -o nounset
 set -o pipefail

+# Set locale to ensure english responses from kubectl commands
+export LANG=C
+
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
 # Expects the following has already been done by whatever sources this script
 # source "${KUBE_ROOT}/hack/lib/init.sh"