Fix shell scripts (#592)

* Change "/bin/bash" with "/usr/bin/env bash"
* Add comment to.changes/init.sh

---------

Signed-off-by: Giuseppe Maxia <gmaxia@vmware.com>

Author: dataclouder

.changes/init.sh

@@ -1,5 +1,11 @@
 #!/usr/bin/env bash
 
+# This script is used at the start of a new release cycle, to
+# initialize the CHANGELOG
+# Run at the top of the repository, as
+# $ .changes/init.sh VERSION
+# (without the initial 'v')
+
 VERSION=$1
 
 if [ -z "$VERSION" ]

scripts/changelog-links.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # This script rewrites [GH-nnnn]-style references in the CHANGELOG.md file to
 # be Markdown links to the given github issues.

scripts/copyright_check.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # This script will find code files that don't have a copyright notice
 # or the ones with an outdated copyright.
 #

scripts/get_token.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # This script will connect to the vCD using username and password,
 # and show the headers that contain a bearer or authorization token.
 #

scripts/gosec.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 scripts_dir=$(dirname $0)
 cd $scripts_dir
 scripts_dir=$PWD

scripts/staticcheck.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 scripts_dir=$(dirname $0)
 cd $scripts_dir
 scripts_dir=$PWD