Vendor Update

vendor/github.com/coreos/etcd/cover

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+#
+# Generate coverage HTML for a package
+# e.g. PKG=./unit ./cover
+#
+set -e
+
+if [ -z "$PKG" ]; then
+	echo "cover only works with a single package, sorry"
+	exit 255
+fi
+
+COVEROUT="coverage"
+
+if ! [ -d "$COVEROUT" ]; then
+	mkdir "$COVEROUT"
+fi
+
+# strip leading dot/slash and trailing slash and sanitize other slashes
+# e.g. ./etcdserver/etcdhttp/ ==> etcdserver_etcdhttp
+COVERPKG=${PKG/#./}
+COVERPKG=${COVERPKG/#\//}
+COVERPKG=${COVERPKG/%\//}
+COVERPKG=${COVERPKG//\//_}
+
+# generate arg for "go test"
+export COVER="-coverprofile ${COVEROUT}/${COVERPKG}.out"
+
+source ./test
+
+go tool cover -html=${COVEROUT}/${COVERPKG}.out