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

Patch created manually after running:

  $ git grep -l 'if __name__.*__main__' \
      | xargs grep -LF '#!/usr/bin/env python3'

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: <20200130163232.10446-7-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 scripts/minikconf.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/minikconf.py b/scripts/minikconf.py
index 40ae1989e1..377d6228b9 100644
--- a/scripts/minikconf.py
+++ b/scripts/minikconf.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 #
 # Mini-Kconfig parser
 #
-- 
2.21.1