Merge pull request #1419 from hashicorp/f-path-cleanup

Remove a few assumptions regarding bash(1) being located in /bin.  Rename `Makefile` to `GNUmakefile` inline with the same change made in Consul and Nomad.

vault/testing.go

@@ -275,7 +275,7 @@ func StartSSHHostTestServer() (string, error) {
 // Used to test the SSH secret backend.
 func executeServerCommand(ch ssh.Channel, req *ssh.Request) {
 	command := string(req.Payload[4:])
-	cmd := exec.Command("/bin/bash", []string{"-c", command}...)
+	cmd := exec.Command("/bin/sh", "-c", command)
 	req.Reply(true, nil)
 
 	cmd.Stdout = ch

website/packer.json

@@ -36,7 +36,7 @@
         "bundle check || bundle install --jobs 7",
         "bundle exec middleman build",
 
-        "/bin/bash ./scripts/deploy.sh"
+        "/usr/bin/env bash ./scripts/deploy.sh"
       ]
     }
   ]

website/scripts/deploy.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 
 PROJECT="vault"