[gobject-introspection] tools: correct python shebang

[Jasper St. Pierre <jstpierre src gnome org>]

commit 427e28ff942bad9a3a19d316912c40e39085a5bd
Author: Mathieu Duponchelle <mathieu duponchelle opencreed com>
Date:   Thu Jun 4 20:20:22 2015 +0200

    tools: correct python shebang

 tools/g-ir-annotation-tool.in |    2 +-
 tools/g-ir-doc-tool.in        |    2 +-
 tools/g-ir-scanner.in         |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/tools/g-ir-annotation-tool.in b/tools/g-ir-annotation-tool.in
index 9ce008d..03d1137 100755
--- a/tools/g-ir-annotation-tool.in
+++ b/tools/g-ir-annotation-tool.in
@@ -1,4 +1,4 @@
-#! PYTHON@
+#!/usr/bin/env @PYTHON@
 # -*- Mode: Python -*-
 # GObject-Introspection - a framework for introspecting GObject libraries
 # Copyright (C) 2008  Johan Dahlin
diff --git a/tools/g-ir-doc-tool.in b/tools/g-ir-doc-tool.in
index 02db10c..241d030 100644
--- a/tools/g-ir-doc-tool.in
+++ b/tools/g-ir-doc-tool.in
@@ -1,4 +1,4 @@
-#! PYTHON@
+#!/usr/bin/env @PYTHON@
 # -*- Mode: Python -*-
 # GObject-Introspection - a framework for introspecting GObject libraries
 # Copyright (C) 2008  Johan Dahlin
diff --git a/tools/g-ir-scanner.in b/tools/g-ir-scanner.in
index 9a1b2bf..6f8e70f 100755
--- a/tools/g-ir-scanner.in
+++ b/tools/g-ir-scanner.in
@@ -1,4 +1,4 @@
-#! PYTHON@
+#!/usr/bin/env @PYTHON@
 # -*- Mode: Python -*-
 # GObject-Introspection - a framework for introspecting GObject libraries
 # Copyright (C) 2008  Johan Dahlin