glusterfind: revert shebangs to #!/usr/bin/python3

Using #!/usr/bin/env python is illegal in Fedora and RHEL packaging.
(Debian and SUSE packaging will complain about it too but don't
enforce it like Fedora packaging does. Yet.)

We went through a giant exercise fixing these once already.

The python needs to be python2/python3 clean. There is a build
scriptlet that converts the shebangs back to /usr/bin/python on rhel7.

Change-Id: If208a2557f7e5d727cda98c27905e249cf485d5b
fixes: bz#1683716
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>

tools/glusterfind/glusterfind.in

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 
 # Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com/>
 # This file is part of GlusterFS.

tools/glusterfind/src/brickfind.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com/>

tools/glusterfind/src/changelog.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com/>

tools/glusterfind/src/main.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com/>

tools/glusterfind/src/nodeagent.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com/>