bin,test: Use /usr/bin/env to locate script interpreters

Make use of the /usr/bin/env tool to locate script interpreters. This is
needed to locate the correct interpreter in non-standard environments.

Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Suggested-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Suggested-by: Mario Costa

Author: oberpar

bin/copy_dates.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Usage: copy_dates.sh SOURCE TARGET
 #

bin/gendesc

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 #
 #   Copyright (c) International Business Machines  Corp., 2002
 #

bin/genhtml

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 #
 #   Copyright (c) International Business Machines  Corp., 2002,2012
 #

bin/geninfo

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 #
 #   Copyright (c) International Business Machines  Corp., 2002,2012
 #

bin/genpng

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 #
 #   Copyright (c) International Business Machines  Corp., 2002
 #

bin/get_changes.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Usage: get_changes.sh
 #

bin/get_version.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Usage: get_version.sh --version|--release|--full
 #

bin/install.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # install.sh [--uninstall] sourcefile targetfile [install options]
 #

bin/lcov

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 #
 #   Copyright (c) International Business Machines  Corp., 2002,2012
 #

bin/updateversion.pl

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 use strict;
 use warnings;