dep ensure for Prometheus deps

vendor/github.com/spf13/pflag/verify/gofmt.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+ROOT=$(dirname "${BASH_SOURCE}")/..
+
+pushd "${ROOT}" > /dev/null
+
+GOFMT=${GOFMT:-"gofmt"}
+bad_files=$(find . -name '*.go' | xargs $GOFMT -s -l)
+if [[ -n "${bad_files}" ]]; then
+  echo "!!! '$GOFMT' needs to be run on the following files: "
+  echo "${bad_files}"
+  exit 1
+fi
+
+# ex: ts=2 sw=2 et filetype=sh