add shebang line to script in tools (#408)

* add shebang line to script in tools

* fix: use shebang line with python 3

* Moved changelog to unreleased

Co-authored-by: Pieter Marsman <pietermarsman@gmail.com>

CHANGELOG.md

@@ -3,6 +3,12 @@ All notable changes in pdfminer.six will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## Unreleased
+
+### Added
+
+- Python3 shebang line to script in tools ([408](https://github.com/pdfminer/pdfminer.six/pull/408)
+
 ## [20200402]
 
 ### Added

pdfminer/psparser.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # -*- coding: utf-8 -*-
 

tests/test_pdfencoding.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # -*- coding: utf-8 -*-
 

tools/conv_afm.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import sys
 import fileinput

tools/conv_cmap.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import sys
 import pickle as pickle

tools/conv_glyphlist.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import sys
 import fileinput

tools/dumppdf.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 """Extract pdf structure in XML format"""
 import logging
 import os.path

tools/pdf2txt.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 """A command line tool for extracting text and images from PDF and
 output it to plain text, html, xml or tags."""
 import argparse

tools/pdfdiff.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 """
 compares rwo pdf files.

tools/prof.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 import sys