kubectl container - Extract version better

1. Use --client since -c is deprecated now 2. The command (./kubectl version --client | grep -o 'GitVersion:"[^"]*"') now returns: GitVersion:"v1.4.0-alpha.1.784+ed3a29bd-dirty" so parse out the version better using sed Related to #23708

kubectl container - Extract version better
ef0581d1 · Davanum Srinivas · ed3a29bd · ef0581d1
Commit ef0581d1 authored Jul 26, 2016 by Davanum Srinivas
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Makefile examples/kubectl-container/Makefile +1 -1

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--- a/examples/kubectl-container/Makefile
+++ b/examples/kubectl-container/Makefile
@@ -27,7 +27,7 @@ kubectl:
 	cp ../../_output/local/bin/$(GOOS)/$(GOARCH)/kubectl .
 .tag: kubectl
-	./kubectl version -c | grep -o 'GitVersion:"[^"]*"' | cut -f 2 -d '"' > .tag
+	./kubectl version --client | grep -o 'GitVersion:"[^"]*"' | sed 's/[^"]*"\([^"+]*\).*/\1/' > .tag
 tag: .tag
 	@echo "Suggest using TAG=$(shell cat .tag)"