Use the program search path to find the Python 3 interpreter.

Patch created mechanically by running:

  $ sed -i "s,^#\!/usr/bin/\(env\ \)\?python$,#\!/usr/bin/env python3," \
       $(git grep -l 'if __name__.*__main__')

Reported-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200130163232.10446-5-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 tests/docker/travis.py         | 2 +-
 tests/qapi-schema/test-qapi.py | 2 +-
 tests/vm/centos                | 2 +-
 tests/vm/fedora                | 2 +-
 tests/vm/freebsd               | 2 +-
 tests/vm/netbsd                | 2 +-
 tests/vm/openbsd               | 2 +-
 tests/vm/ubuntu.i386           | 2 +-
 8 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/tests/docker/travis.py b/tests/docker/travis.py
index e1433012bd..62fccc5ebb 100755
--- a/tests/docker/travis.py
+++ b/tests/docker/travis.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Travis YAML config parser
 #
diff --git a/tests/qapi-schema/test-qapi.py b/tests/qapi-schema/test-qapi.py
index bad14edb47..503fb8ad25 100755
--- a/tests/qapi-schema/test-qapi.py
+++ b/tests/qapi-schema/test-qapi.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # QAPI parser test harness
 #
diff --git a/tests/vm/centos b/tests/vm/centos
index f2f0befd84..a41ff109eb 100755
--- a/tests/vm/centos
+++ b/tests/vm/centos
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # CentOS image
 #
diff --git a/tests/vm/fedora b/tests/vm/fedora
index 8e270fc0f0..4d7d6049f4 100755
--- a/tests/vm/fedora
+++ b/tests/vm/fedora
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Fedora VM image
 #
diff --git a/tests/vm/freebsd b/tests/vm/freebsd
index 33a736298a..fb54334696 100755
--- a/tests/vm/freebsd
+++ b/tests/vm/freebsd
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # FreeBSD VM image
 #
diff --git a/tests/vm/netbsd b/tests/vm/netbsd
index ec6f3563b2..c5069a45f4 100755
--- a/tests/vm/netbsd
+++ b/tests/vm/netbsd
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # NetBSD VM image
 #
diff --git a/tests/vm/openbsd b/tests/vm/openbsd
index d6173506f7..22cd9513dd 100755
--- a/tests/vm/openbsd
+++ b/tests/vm/openbsd
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # OpenBSD VM image
 #
diff --git a/tests/vm/ubuntu.i386 b/tests/vm/ubuntu.i386
index 3834cd7a8d..48e9cb1ad3 100755
--- a/tests/vm/ubuntu.i386
+++ b/tests/vm/ubuntu.i386
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Ubuntu i386 image
 #
-- 
2.21.1