more portable python shebangs (#5816)

This is useful on systems like NixOS, where python3 is not in
/usr/bin/python3 as well as for people using alternative ways to
install python such as virtualenv/pyenv.

hwdb/acpi-update.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 from html.parser import HTMLParser
 from enum import Enum

hwdb/parse_hwdb.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
 #
 # This file is part of systemd. It is distrubuted under the MIT license, see

man/90-rearrange-path.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 """
 

src/basic/generate-gperfs.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 """Generate %-from-name.gperf from %-list.txt
 """

src/journal-remote/log-generator.py

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

src/resolve/generate-dns_type-gperf.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 """Generate %-from-name.gperf from %-list.txt
 """

src/test/generate-sym-test.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 import sys, re
 
 print('#include <stdio.h>')

test/create-sys-script.py

@@ -1,6 +1,6 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
-OUTFILE_HEADER = """#!/usr/bin/python3
+OUTFILE_HEADER = """#!/usr/bin/env python3
 #
 # create-sys-script.py
 #

test/rule-syntax-check.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # Simple udev rules syntax checker
 #
 # (C) 2010 Canonical Ltd.

test/sys-script.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #
 # sys-script.py
 #

test/sysv-generator-test.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #
 # systemd-sysv-generator integration test
 #

test/test-exec-deserialization.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 #
 #  Copyright 2017 Michal Sekletar <msekleta@redhat.com>

tools/catalog-report.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
 #
 # This file is part of systemd. It is distrubuted under the MIT license, see

tools/gdb-sd_dump_hashmaps.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #  -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
 #
 #  This file is part of systemd.

tools/make-directive-index.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #  -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
 #
 #  This file is part of systemd.

tools/make-man-index.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #  -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
 #
 #  This file is part of systemd.

tools/make-man-rules.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #  -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
 #
 #  This file is part of systemd.

tools/xml_helper.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #  -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
 #
 #  This file is part of systemd.